64699141 has 16 divisors (see below), whose sum is σ = 70994560. Its totient is φ = 58605120.

The previous prime is 64699099. The next prime is 64699163. The reversal of 64699141 is 14199646.

It is a cyclic number.

It is not a de Polignac number, because 64699141 - 2¹⁵ = 64666373 is a prime.

It is a super-2 number, since 2×64699141² = 8371957692275762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64699094 and 64699103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64699181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282415 + ... + 282643.

It is an arithmetic number, because the mean of its divisors is an integer number (4437160).

Almost surely, 2^64699141 is an apocalyptic number.

It is an amenable number.

64699141 is a deficient number, since it is larger than the sum of its proper divisors (6295419).

64699141 is a wasteful number, since it uses less digits than its factorization.

64699141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its digits is 46656, while the sum is 40.

The square root of 64699141 is about 8043.5776244156. The cubic root of 64699141 is about 401.4512719066.

The spelling of 64699141 in words is "sixty-four million, six hundred ninety-nine thousand, one hundred forty-one".