1612734904225 has 9 divisors (see below), whose sum is σ = 1999799154867. Its totient is φ = 1290182843640.

The previous prime is 1612734904213. The next prime is 1612734904273. The reversal of 1612734904225 is 5224094372161.

The square root of 1612734904225 is 1269935.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 580584565521 + 1032150338704 = 761961^2 + 1015948^2 .

It is not a de Polignac number, because 1612734904225 - 2¹³ = 1612734896033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6222682 + ... + 6476668.

Almost surely, 2^{1612734904225} is an apocalyptic number.

1612734904225 is the 1269935-th square number.

1612734904225 is the 634968-th centered octagonal number.

It is an amenable number.

1612734904225 is a deficient number, since it is larger than the sum of its proper divisors (387064250642).

1612734904225 is an frugal number, since it uses more digits than its factorization.

1612734904225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507984 (or 253992 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 1612734904225 in words is "one trillion, six hundred twelve billion, seven hundred thirty-four million, nine hundred four thousand, two hundred twenty-five".