1356742725 has 48 divisors (see below), whose sum is σ = 2430802752. Its totient is φ = 663759360.

The previous prime is 1356742711. The next prime is 1356742771. The reversal of 1356742725 is 5272476531.

It is not a de Polignac number, because 1356742725 - 2⁵ = 1356742693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154657 + ... + 163193.

It is an arithmetic number, because the mean of its divisors is an integer number (50641724).

Almost surely, 2^1356742725 is an apocalyptic number.

1356742725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1356742725 is a deficient number, since it is larger than the sum of its proper divisors (1074060027).

1356742725 is a wasteful number, since it uses less digits than its factorization.

1356742725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8726 (or 8721 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 1356742725 is about 36833.9887196595. The cubic root of 1356742725 is about 1107.0464251177.

The spelling of 1356742725 in words is "one billion, three hundred fifty-six million, seven hundred forty-two thousand, seven hundred twenty-five".