1393474007025 has 27 divisors (see below), whose sum is σ = 2495898492321. Its totient is φ = 743176693440.

The previous prime is 1393474007011. The next prime is 1393474007033. The reversal of 1393474007025 is 5207004743931.

The square root of 1393474007025 is 1180455.

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

1393474007025 is a `hidden beast` number, since 1 + 3 + 93 + 474 + 0 + 0 + 70 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 634254552801 + 759219454224 = 796401^2 + 871332^2 .

It is not a de Polignac number, because 1393474007025 - 2⁹ = 1393474006513 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17667477 + ... + 17746173.

Almost surely, 2^{1393474007025} is an apocalyptic number.

1393474007025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1393474007025 is the 1180455-th square number.

1393474007025 is the 590228-th centered octagonal number.

It is an amenable number.

1393474007025 is a deficient number, since it is larger than the sum of its proper divisors (1102424485296).

1393474007025 is an frugal number, since it uses more digits than its factorization.

1393474007025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157410 (or 78705 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 1393474007025 in words is "one trillion, three hundred ninety-three billion, four hundred seventy-four million, seven thousand, twenty-five".