1953549172 has 12 divisors (see below), whose sum is σ = 3491449920. Its totient is φ = 955992056.

The previous prime is 1953549151. The next prime is 1953549187. The reversal of 1953549172 is 2719453591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5195422 + ... + 5195797.

It is an arithmetic number, because the mean of its divisors is an integer number (290954160).

Almost surely, 2^1953549172 is an apocalyptic number.

It is an amenable number.

1953549172 is a deficient number, since it is larger than the sum of its proper divisors (1537900748).

1953549172 is a wasteful number, since it uses less digits than its factorization.

1953549172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391270 (or 10391268 counting only the distinct ones).

The product of its digits is 340200, while the sum is 46.

The square root of 1953549172 is about 44198.9725219942. The cubic root of 1953549172 is about 1250.0904834767.

The spelling of 1953549172 in words is "one billion, nine hundred fifty-three million, five hundred forty-nine thousand, one hundred seventy-two".