137599481 has 2 divisors, whose sum is σ = 137599482. Its totient is φ = 137599480.

The previous prime is 137599457. The next prime is 137599487. The reversal of 137599481 is 184995731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137358400 + 241081 = 11720^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 137599481 - 2⁶ = 137599417 is a prime.

It is a super-2 number, since 2×137599481² = 37867234342938722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137599487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68799740 + 68799741.

It is an arithmetic number, because the mean of its divisors is an integer number (68799741).

Almost surely, 2^137599481 is an apocalyptic number.

It is an amenable number.

137599481 is a deficient number, since it is larger than the sum of its proper divisors (1).

137599481 is an equidigital number, since it uses as much as digits as its factorization.

137599481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 137599481 is about 11730.2805166799. The cubic root of 137599481 is about 516.2645031854.

The spelling of 137599481 in words is "one hundred thirty-seven million, five hundred ninety-nine thousand, four hundred eighty-one".