1015125438 has 8 divisors (see below), whose sum is σ = 2030250888. Its totient is φ = 338375144.

The previous prime is 1015125409. The next prime is 1015125457. The reversal of 1015125438 is 8345215101.

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

1015125438 is an admirable number.

It is a super-3 number, since 3×1015125438³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

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, 84593781 + ... + 84593792.

It is an arithmetic number, because the mean of its divisors is an integer number (253781361).

Almost surely, 2^1015125438 is an apocalyptic number.

1015125438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1015125438 is a wasteful number, since it uses less digits than its factorization.

1015125438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169187578.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 1015125438 is about 31861.0332224176. The cubic root of 1015125438 is about 1005.0166042652.

The spelling of 1015125438 in words is "one billion, fifteen million, one hundred twenty-five thousand, four hundred thirty-eight".