137246126431 has 4 divisors (see below), whose sum is σ = 141673420864. Its totient is φ = 132818832000.

The previous prime is 137246126411. The next prime is 137246126443. The reversal of 137246126431 is 134621642731.

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

It is a cyclic number.

It is not a de Polignac number, because 137246126431 - 2⁵ = 137246126399 is a prime.

It is a super-2 number, since 2×137246126431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137246126411) 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, 2213647170 + ... + 2213647231.

It is an arithmetic number, because the mean of its divisors is an integer number (35418355216).

Almost surely, 2^137246126431 is an apocalyptic number.

137246126431 is a deficient number, since it is larger than the sum of its proper divisors (4427294433).

137246126431 is an equidigital number, since it uses as much as digits as its factorization.

137246126431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427294432.

The product of its digits is 145152, while the sum is 40.

The spelling of 137246126431 in words is "one hundred thirty-seven billion, two hundred forty-six million, one hundred twenty-six thousand, four hundred thirty-one".