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137342227 = 1112485657
BaseRepresentation
bin10000010111110…
…10110100010011
3100120102201010011
420023322310103
5240124422402
621343415351
73255250441
oct1013726423
9316381104
10137342227
1170587280
1239bb4557
13225b96b9
1414351b91
15c0cded7
hex82fad13

137342227 has 4 divisors (see below), whose sum is σ = 149827896. Its totient is φ = 124856560.

The previous prime is 137342213. The next prime is 137342237. The reversal of 137342227 is 722243731.

137342227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722243731 = 1165658521.

It is a cyclic number.

It is not a de Polignac number, because 137342227 - 211 = 137340179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137342237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6242818 + ... + 6242839.

It is an arithmetic number, because the mean of its divisors is an integer number (37456974).

Almost surely, 2137342227 is an apocalyptic number.

137342227 is a deficient number, since it is larger than the sum of its proper divisors (12485669).

137342227 is a wasteful number, since it uses less digits than its factorization.

137342227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12485668.

The product of its digits is 14112, while the sum is 31.

The square root of 137342227 is about 11719.3100052861. The cubic root of 137342227 is about 515.9425689241.

Adding to 137342227 its reverse (722243731), we get a palindrome (859585958).

The spelling of 137342227 in words is "one hundred thirty-seven million, three hundred forty-two thousand, two hundred twenty-seven".

Divisors: 1 11 12485657 137342227