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137272253 = 335940867
BaseRepresentation
bin10000010111010…
…01101110111101
3100120022011010112
420023221232331
5240120203003
621342115405
73254536436
oct1013515675
9316264115
10137272253
1170539748
1239b7bb65
13225938b1
141433448d
15c0b83d8
hex82e9bbd

137272253 has 4 divisors (see below), whose sum is σ = 137316480. Its totient is φ = 137228028.

The previous prime is 137272241. The next prime is 137272259. The reversal of 137272253 is 352272731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352272731 = 369195441.

It is a cyclic number.

It is not a de Polignac number, because 137272253 - 24 = 137272237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137272259) 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, 17075 + ... + 23792.

It is an arithmetic number, because the mean of its divisors is an integer number (34329120).

Almost surely, 2137272253 is an apocalyptic number.

It is an amenable number.

137272253 is a deficient number, since it is larger than the sum of its proper divisors (44227).

137272253 is an equidigital number, since it uses as much as digits as its factorization.

137272253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44226.

The product of its digits is 17640, while the sum is 32.

The square root of 137272253 is about 11716.3242102632. The cubic root of 137272253 is about 515.8549321278.

The spelling of 137272253 in words is "one hundred thirty-seven million, two hundred seventy-two thousand, two hundred fifty-three".

Divisors: 1 3359 40867 137272253