7564081 has 6 divisors (see below), whose sum is σ = 8799090. Its totient is φ = 6483456.

The previous prime is 7564057. The next prime is 7564091. The reversal of 7564081 is 1804657.

It can be written as a sum of positive squares in only one way, i.e., 5832225 + 1731856 = 2415^2 + 1316^2 .

It is not a de Polignac number, because 7564081 - 2⁷ = 7563953 is a prime.

It is a super-2 number, since 2×7564081² = 114430642749122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7564091) 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 5 ways as a sum of consecutive naturals, for example, 77136 + ... + 77233.

It is an arithmetic number, because the mean of its divisors is an integer number (1466515).

Almost surely, 2^7564081 is an apocalyptic number.

It is an amenable number.

7564081 is a deficient number, since it is larger than the sum of its proper divisors (1235009).

7564081 is a wasteful number, since it uses less digits than its factorization.

7564081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154383 (or 154376 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 7564081 is about 2750.2874395234. The cubic root of 7564081 is about 196.2992876597.

The spelling of 7564081 in words is "seven million, five hundred sixty-four thousand, eighty-one".