125542151404029 has 24 divisors (see below), whose sum is σ = 181433920948280. Its totient is φ = 83650806217728.

The previous prime is 125542151404003. The next prime is 125542151404037. The reversal of 125542151404029 is 920404151245521.

It is a happy number.

125542151404029 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 4 + 215 + 1 + 404 + 0 + 29 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20276090398404 + 105266061005625 = 4502898^2 + 10259925^2 .

It is not a de Polignac number, because 125542151404029 - 2¹² = 125542151399933 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 (125542151404069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435982869 + ... + 436270725.

Almost surely, 2^{125542151404029} is an apocalyptic number.

It is an amenable number.

125542151404029 is a deficient number, since it is larger than the sum of its proper divisors (55891769544251).

125542151404029 is a wasteful number, since it uses less digits than its factorization.

125542151404029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313149 (or 313146 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 125542151404029 in words is "one hundred twenty-five trillion, five hundred forty-two billion, one hundred fifty-one million, four hundred four thousand, twenty-nine".