125656031542 has 16 divisors (see below), whose sum is σ = 192661463232. Its totient is φ = 61437864960.

The previous prime is 125656031533. The next prime is 125656031551. The reversal of 125656031542 is 245130656521.

It is an interprime number because it is at equal distance from previous prime (125656031533) and next prime (125656031551).

It is a junction number, because it is equal to n+sod(n) for n = 125656031495 and 125656031504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471309 + ... + 688072.

It is an arithmetic number, because the mean of its divisors is an integer number (12041341452).

Almost surely, 2^125656031542 is an apocalyptic number.

125656031542 is a deficient number, since it is larger than the sum of its proper divisors (67005431690).

125656031542 is a wasteful number, since it uses less digits than its factorization.

125656031542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160583.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 125656031542 in words is "one hundred twenty-five billion, six hundred fifty-six million, thirty-one thousand, five hundred forty-two".