194906512 has 20 divisors (see below), whose sum is σ = 378036940. Its totient is φ = 97348608.

The previous prime is 194906501. The next prime is 194906549. The reversal of 194906512 is 215609491.

It can be written as a sum of positive squares in 2 ways, for example, as 24760576 + 170145936 = 4976^2 + 13044^2 .

It is a super-2 number, since 2×194906512² = 75977096840012288, 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, 10108 + ... + 22180.

It is an arithmetic number, because the mean of its divisors is an integer number (18901847).

Almost surely, 2^194906512 is an apocalyptic number.

It is an amenable number.

194906512 is a deficient number, since it is larger than the sum of its proper divisors (183130428).

194906512 is a wasteful number, since it uses less digits than its factorization.

194906512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13090 (or 13084 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 194906512 is about 13960.8922350973. The cubic root of 194906512 is about 579.7963137328.

The spelling of 194906512 in words is "one hundred ninety-four million, nine hundred six thousand, five hundred twelve".