190942564 has 6 divisors (see below), whose sum is σ = 334149494. Its totient is φ = 95471280.

The previous prime is 190942561. The next prime is 190942637. The reversal of 190942564 is 465249091.

It can be written as a sum of positive squares in only one way, i.e., 184742464 + 6200100 = 13592^2 + 2490^2 .

It is not an unprimeable number, because it can be changed into a prime (190942561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23867817 + ... + 23867824.

Almost surely, 2^190942564 is an apocalyptic number.

It is an amenable number.

190942564 is a deficient number, since it is larger than the sum of its proper divisors (143206930).

190942564 is a wasteful number, since it uses less digits than its factorization.

190942564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47735645 (or 47735643 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 190942564 is about 13818.1968432933. The cubic root of 190942564 is about 575.8387899223.

The spelling of 190942564 in words is "one hundred ninety million, nine hundred forty-two thousand, five hundred sixty-four".