1025215316 has 12 divisors (see below), whose sum is σ = 1795690932. Its totient is φ = 512160768.

The previous prime is 1025215259. The next prime is 1025215333. The reversal of 1025215316 is 6135125201.

It can be written as a sum of positive squares in 2 ways, for example, as 531486916 + 493728400 = 23054^2 + 22220^2 .

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, 106535 + ... + 115758.

It is an arithmetic number, because the mean of its divisors is an integer number (149640911).

Almost surely, 2^1025215316 is an apocalyptic number.

It is an amenable number.

1025215316 is a deficient number, since it is larger than the sum of its proper divisors (770475616).

1025215316 is a wasteful number, since it uses less digits than its factorization.

1025215316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223450 (or 223448 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1025215316 is about 32018.9836815599. The cubic root of 1025215316 is about 1008.3354328455.

The spelling of 1025215316 in words is "one billion, twenty-five million, two hundred fifteen thousand, three hundred sixteen".