1542137725 has 12 divisors (see below), whose sum is σ = 1919877120. Its totient is φ = 1228790000.

The previous prime is 1542137651. The next prime is 1542137731. The reversal of 1542137725 is 5277312451.

It is not a de Polignac number, because 1542137725 - 2²³ = 1533749117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116605 + ... + 129154.

It is an arithmetic number, because the mean of its divisors is an integer number (159989760).

Almost surely, 2^1542137725 is an apocalyptic number.

It is an amenable number.

1542137725 is a deficient number, since it is larger than the sum of its proper divisors (377739395).

1542137725 is a wasteful number, since it uses less digits than its factorization.

1542137725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246020 (or 246015 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 1542137725 is about 39270.0614336163. The cubic root of 1542137725 is about 1155.3344421074.

The spelling of 1542137725 in words is "one billion, five hundred forty-two million, one hundred thirty-seven thousand, seven hundred twenty-five".