1025415231 has 16 divisors (see below), whose sum is σ = 1452292704. Its totient is φ = 641332224.

The previous prime is 1025415217. The next prime is 1025415247. The reversal of 1025415231 is 1325145201.

It is a happy number.

It is not a de Polignac number, because 1025415231 - 2¹⁰ = 1025414207 is a prime.

It is a super-2 number, since 2×1025415231² = 2102952791933566722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025415331) 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, 16156 + ... + 48081.

It is an arithmetic number, because the mean of its divisors is an integer number (90768294).

Almost surely, 2^1025415231 is an apocalyptic number.

1025415231 is a deficient number, since it is larger than the sum of its proper divisors (426877473).

1025415231 is a wasteful number, since it uses less digits than its factorization.

1025415231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64570.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1025415231 is about 32022.1053492740. The cubic root of 1025415231 is about 1008.4009697377.

The spelling of 1025415231 in words is "one billion, twenty-five million, four hundred fifteen thousand, two hundred thirty-one".