64140148 has 12 divisors (see below), whose sum is σ = 114633792. Its totient is φ = 31387640.

The previous prime is 64140137. The next prime is 64140149. The reversal of 64140148 is 84104146.

It is a super-2 number, since 2×64140148² = 8227917170923808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64140149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170398 + ... + 170773.

It is an arithmetic number, because the mean of its divisors is an integer number (9552816).

Almost surely, 2^64140148 is an apocalyptic number.

It is an amenable number.

64140148 is a deficient number, since it is larger than the sum of its proper divisors (50493644).

64140148 is a wasteful number, since it uses less digits than its factorization.

64140148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341222 (or 341220 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 64140148 is about 8008.7544599644. The cubic root of 64140148 is about 400.2917621354.

The spelling of 64140148 in words is "sixty-four million, one hundred forty thousand, one hundred forty-eight".