125622136929 has 4 divisors (see below), whose sum is σ = 167496182576. Its totient is φ = 83748091284.

The previous prime is 125622136903. The next prime is 125622136957. The reversal of 125622136929 is 929631226521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125622136929 - 2¹² = 125622132833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125622134929) 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, 20937022819 + ... + 20937022824.

It is an arithmetic number, because the mean of its divisors is an integer number (41874045644).

Almost surely, 2^125622136929 is an apocalyptic number.

It is an amenable number.

125622136929 is a deficient number, since it is larger than the sum of its proper divisors (41874045647).

125622136929 is an equidigital number, since it uses as much as digits as its factorization.

125622136929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41874045646.

The product of its digits is 699840, while the sum is 48.

The spelling of 125622136929 in words is "one hundred twenty-five billion, six hundred twenty-two million, one hundred thirty-six thousand, nine hundred twenty-nine".