1538125867 has 16 divisors (see below), whose sum is σ = 1713888000. Its totient is φ = 1374184224.

The previous prime is 1538125861. The next prime is 1538125907. The reversal of 1538125867 is 7685218351.

It is a cyclic number.

It is not a de Polignac number, because 1538125867 - 2³ = 1538125859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1538125861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8767 + ... + 56152.

It is an arithmetic number, because the mean of its divisors is an integer number (107118000).

Almost surely, 2^1538125867 is an apocalyptic number.

1538125867 is a deficient number, since it is larger than the sum of its proper divisors (175762133).

1538125867 is a wasteful number, since it uses less digits than its factorization.

1538125867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65010.

The product of its digits is 403200, while the sum is 46.

The square root of 1538125867 is about 39218.9478058757. The cubic root of 1538125867 is about 1154.3317078715.

The spelling of 1538125867 in words is "one billion, five hundred thirty-eight million, one hundred twenty-five thousand, eight hundred sixty-seven".