137097223 has 4 divisors (see below), whose sum is σ = 138428368. Its totient is φ = 135766080.

The previous prime is 137097199. The next prime is 137097241. The reversal of 137097223 is 322790731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322790731 = 2161 ⋅149371.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137097223 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 (137097253) 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, 665418 + ... + 665623.

It is an arithmetic number, because the mean of its divisors is an integer number (34607092).

Almost surely, 2^137097223 is an apocalyptic number.

137097223 is a deficient number, since it is larger than the sum of its proper divisors (1331145).

137097223 is a wasteful number, since it uses less digits than its factorization.

137097223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331144.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 137097223 is about 11708.8523348789. The cubic root of 137097223 is about 515.6355906634.

The spelling of 137097223 in words is "one hundred thirty-seven million, ninety-seven thousand, two hundred twenty-three".