3125366042 has 4 divisors (see below), whose sum is σ = 4688049066. Its totient is φ = 1562683020.

The previous prime is 3125366021. The next prime is 3125366053. The reversal of 3125366042 is 2406635213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2406635213 = 673 ⋅3575981.

It can be written as a sum of positive squares in only one way, i.e., 2798515801 + 326850241 = 52901^2 + 18079^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781341509 + ... + 781341512.

Almost surely, 2^3125366042 is an apocalyptic number.

3125366042 is a deficient number, since it is larger than the sum of its proper divisors (1562683024).

3125366042 is a wasteful number, since it uses less digits than its factorization.

3125366042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562683023.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 3125366042 is about 55904.9733208057. The cubic root of 3125366042 is about 1462.0659502538.

The spelling of 3125366042 in words is "three billion, one hundred twenty-five million, three hundred sixty-six thousand, forty-two".