125857442 has 8 divisors (see below), whose sum is σ = 188872236. Its totient is φ = 62900032.

The previous prime is 125857421. The next prime is 125857453. The reversal of 125857442 is 244758521.

It can be written as a sum of positive squares in 2 ways, for example, as 112381201 + 13476241 = 10601^2 + 3671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 125857396 and 125857405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8363 + ... + 17934.

Almost surely, 2^125857442 is an apocalyptic number.

125857442 is a deficient number, since it is larger than the sum of its proper divisors (63014794).

125857442 is a wasteful number, since it uses less digits than its factorization.

125857442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28692.

The product of its digits is 89600, while the sum is 38.

The square root of 125857442 is about 11218.6203251559. The cubic root of 125857442 is about 501.1406518479.

The spelling of 125857442 in words is "one hundred twenty-five million, eight hundred fifty-seven thousand, four hundred forty-two".