137007404557 has 4 divisors (see below), whose sum is σ = 139592449980. Its totient is φ = 134422359136.

The previous prime is 137007404549. The next prime is 137007404603. The reversal of 137007404557 is 755404700731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63225090916 + 73782313641 = 251446^2 + 271629^2 .

It is a cyclic number.

It is not a de Polignac number, because 137007404557 - 2³ = 137007404549 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 (137007404507) 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, 1292522632 + ... + 1292522737.

It is an arithmetic number, because the mean of its divisors is an integer number (34898112495).

Almost surely, 2^137007404557 is an apocalyptic number.

It is an amenable number.

137007404557 is a deficient number, since it is larger than the sum of its proper divisors (2585045423).

137007404557 is an equidigital number, since it uses as much as digits as its factorization.

137007404557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585045422.

The product of its (nonzero) digits is 411600, while the sum is 43.

The spelling of 137007404557 in words is "one hundred thirty-seven billion, seven million, four hundred four thousand, five hundred fifty-seven".