564149091 has 32 divisors (see below), whose sum is σ = 844784640. Its totient is φ = 331968800.

The previous prime is 564149071. The next prime is 564149107. The reversal of 564149091 is 190941465.

It is a cyclic number.

It is not a de Polignac number, because 564149091 - 2⁵ = 564149059 is a prime.

It is a super-2 number, since 2×564149091² = 636528393752252562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (564149041) 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 in 31 ways as a sum of consecutive naturals, for example, 159856 + ... + 163346.

It is an arithmetic number, because the mean of its divisors is an integer number (26399520).

Almost surely, 2^564149091 is an apocalyptic number.

564149091 is a deficient number, since it is larger than the sum of its proper divisors (280635549).

564149091 is a wasteful number, since it uses less digits than its factorization.

564149091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 564149091 is about 23751.8228984640. The cubic root of 564149091 is about 826.2877182855.

The spelling of 564149091 in words is "five hundred sixty-four million, one hundred forty-nine thousand, ninety-one".