194912072 has 16 divisors (see below), whose sum is σ = 386958060. Its totient is φ = 91723264.

The previous prime is 194912059. The next prime is 194912083. The reversal of 194912072 is 270219491.

It can be written as a sum of positive squares in 2 ways, for example, as 168636196 + 26275876 = 12986^2 + 5126^2 .

It is a super-2 number, since 2×194912072² = 75981431622666368, which contains 22 as substring.

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, 716453 + ... + 716724.

Almost surely, 2^194912072 is an apocalyptic number.

It is an amenable number.

194912072 is a deficient number, since it is larger than the sum of its proper divisors (192045988).

194912072 is a wasteful number, since it uses less digits than its factorization.

194912072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433200 (or 1433196 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 194912072 is about 13961.0913613514. The cubic root of 194912072 is about 579.8018268663.

The spelling of 194912072 in words is "one hundred ninety-four million, nine hundred twelve thousand, seventy-two".