1013653225 has 12 divisors (see below), whose sum is σ = 1353617356. Its totient is φ = 748543680.

The previous prime is 1013653189. The next prime is 1013653243. The reversal of 1013653225 is 5223563101.

It can be written as a sum of positive squares in 6 ways, for example, as 161188416 + 852464809 = 12696^2 + 29197^2 .

It is not a de Polignac number, because 1013653225 - 2¹⁵ = 1013620457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013653193 and 1013653202.

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, 1559142 + ... + 1559791.

Almost surely, 2^1013653225 is an apocalyptic number.

It is an amenable number.

1013653225 is a deficient number, since it is larger than the sum of its proper divisors (339964131).

1013653225 is a wasteful number, since it uses less digits than its factorization.

1013653225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118956 (or 3118951 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1013653225 is about 31837.9211789966. The cubic root of 1013653225 is about 1004.5305184058.

Subtracting from 1013653225 its product of nonzero digits (5400), we obtain a triangular number (1013647825 = T₄₅₀₂₅).

The spelling of 1013653225 in words is "one billion, thirteen million, six hundred fifty-three thousand, two hundred twenty-five".