125136044742 has 16 divisors (see below), whose sum is σ = 263444304960. Its totient is φ = 39516645672.

The previous prime is 125136044717. The next prime is 125136044767. The reversal of 125136044742 is 247440631521.

It is an interprime number because it is at equal distance from previous prime (125136044717) and next prime (125136044767).

It is a self number, because there is not a number n which added to its sum of digits gives 125136044742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548842188 + ... + 548842415.

It is an arithmetic number, because the mean of its divisors is an integer number (16465269060).

Almost surely, 2^125136044742 is an apocalyptic number.

125136044742 is an abundant number, since it is smaller than the sum of its proper divisors (138308260218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125136044742 is a wasteful number, since it uses less digits than its factorization.

125136044742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097684627.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 125136044742 in words is "one hundred twenty-five billion, one hundred thirty-six million, forty-four thousand, seven hundred forty-two".