1372740725 has 12 divisors (see below), whose sum is σ = 1713627300. Its totient is φ = 1090819200.

The previous prime is 1372740697. The next prime is 1372740731. The reversal of 1372740725 is 5270472731.

It can be written as a sum of positive squares in 6 ways, for example, as 266113969 + 1106626756 = 16313^2 + 33266^2 .

It is not a de Polignac number, because 1372740725 - 2⁶ = 1372740661 is a prime.

It is a congruent number.

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, 180536 + ... + 187985.

It is an arithmetic number, because the mean of its divisors is an integer number (142802275).

Almost surely, 2^1372740725 is an apocalyptic number.

It is an amenable number.

1372740725 is a deficient number, since it is larger than the sum of its proper divisors (340886575).

1372740725 is a wasteful number, since it uses less digits than its factorization.

1372740725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368680 (or 368675 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 1372740725 is about 37050.5158533589. The cubic root of 1372740725 is about 1111.3806710891.

The spelling of 1372740725 in words is "one billion, three hundred seventy-two million, seven hundred forty thousand, seven hundred twenty-five".