64481156 has 12 divisors (see below), whose sum is σ = 113561868. Its totient is φ = 32034912.

The previous prime is 64481141. The next prime is 64481171. The reversal of 64481156 is 65118446.

It is an interprime number because it is at equal distance from previous prime (64481141) and next prime (64481171).

It can be written as a sum of positive squares in 2 ways, for example, as 18783556 + 45697600 = 4334^2 + 6760^2 .

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, 50711 + ... + 51966.

It is an arithmetic number, because the mean of its divisors is an integer number (9463489).

Almost surely, 2^64481156 is an apocalyptic number.

It is an amenable number.

64481156 is a deficient number, since it is larger than the sum of its proper divisors (49080712).

64481156 is a wasteful number, since it uses less digits than its factorization.

64481156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102838 (or 102836 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 64481156 is about 8030.0159402083. The cubic root of 64481156 is about 400.9999067170. Note that the first 4 decimals are identical.

The spelling of 64481156 in words is "sixty-four million, four hundred eighty-one thousand, one hundred fifty-six".