1375197725 has 48 divisors (see below), whose sum is σ = 1918371264. Its totient is φ = 969408000.

The previous prime is 1375197721. The next prime is 1375197743. The reversal of 1375197725 is 5277915731.

It is a happy number.

It is not a de Polignac number, because 1375197725 - 2² = 1375197721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375197725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375197721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1224014 + ... + 1225136.

It is an arithmetic number, because the mean of its divisors is an integer number (39966068).

Almost surely, 2^1375197725 is an apocalyptic number.

It is an amenable number.

1375197725 is a deficient number, since it is larger than the sum of its proper divisors (543173539).

1375197725 is a wasteful number, since it uses less digits than its factorization.

1375197725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1273 counting only the distinct ones).

The product of its digits is 463050, while the sum is 47.

The square root of 1375197725 is about 37083.6584629942. The cubic root of 1375197725 is about 1112.0433441195.

The spelling of 1375197725 in words is "one billion, three hundred seventy-five million, one hundred ninety-seven thousand, seven hundred twenty-five".