1974237725 has 12 divisors (see below), whose sum is σ = 2449170624. Its totient is φ = 1578670320.

The previous prime is 1974237709. The next prime is 1974237737. The reversal of 1974237725 is 5277324791.

It is not a de Polignac number, because 1974237725 - 2⁴ = 1974237709 is a prime.

It is a super-2 number, since 2×1974237725² = 7795229189626351250, which contains 22 as substring.

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 1974237725.

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, 41852 + ... + 75498.

It is an arithmetic number, because the mean of its divisors is an integer number (204097552).

Almost surely, 2^1974237725 is an apocalyptic number.

It is an amenable number.

1974237725 is a deficient number, since it is larger than the sum of its proper divisors (474932899).

1974237725 is a wasteful number, since it uses less digits than its factorization.

1974237725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36004 (or 35999 counting only the distinct ones).

The product of its digits is 740880, while the sum is 47.

The square root of 1974237725 is about 44432.3949950934. The cubic root of 1974237725 is about 1254.4879156070.

The spelling of 1974237725 in words is "one billion, nine hundred seventy-four million, two hundred thirty-seven thousand, seven hundred twenty-five".