125166542 has 4 divisors (see below), whose sum is σ = 187749816. Its totient is φ = 62583270.

The previous prime is 125166521. The next prime is 125166551. The reversal of 125166542 is 245661521.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 125166499 and 125166508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31291634 + ... + 31291637.

It is an arithmetic number, because the mean of its divisors is an integer number (46937454).

Almost surely, 2^125166542 is an apocalyptic number.

125166542 is a deficient number, since it is larger than the sum of its proper divisors (62583274).

125166542 is an equidigital number, since it uses as much as digits as its factorization.

125166542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62583273.

The product of its digits is 14400, while the sum is 32.

The square root of 125166542 is about 11187.7853930079. The cubic root of 125166542 is about 500.2219574552.

The spelling of 125166542 in words is "one hundred twenty-five million, one hundred sixty-six thousand, five hundred forty-two".