137483921 has 2 divisors, whose sum is σ = 137483922. Its totient is φ = 137483920.

The previous prime is 137483909. The next prime is 137483953. The reversal of 137483921 is 129384731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137147521 + 336400 = 11711^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 137483921 - 2¹⁰ = 137482897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137483821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68741960 + 68741961.

It is an arithmetic number, because the mean of its divisors is an integer number (68741961).

Almost surely, 2^137483921 is an apocalyptic number.

It is an amenable number.

137483921 is a deficient number, since it is larger than the sum of its proper divisors (1).

137483921 is an equidigital number, since it uses as much as digits as its factorization.

137483921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 137483921 is about 11725.3537686502. The cubic root of 137483921 is about 516.1199381173.

The spelling of 137483921 in words is "one hundred thirty-seven million, four hundred eighty-three thousand, nine hundred twenty-one".