64149147 has 12 divisors (see below), whose sum is σ = 93142504. Its totient is φ = 42543360.

The previous prime is 64149103. The next prime is 64149191. The reversal of 64149147 is 74194146.

64149147 is a `hidden beast` number, since 641 + 4 + 9 + 1 + 4 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (64149103) and next prime (64149191).

It is not a de Polignac number, because 64149147 - 2¹² = 64145051 is a prime.

It is a super-2 number, since 2×64149147² = 8230226121655218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64149647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16729 + ... + 20202.

Almost surely, 2^64149147 is an apocalyptic number.

64149147 is a deficient number, since it is larger than the sum of its proper divisors (28993357).

64149147 is a wasteful number, since it uses less digits than its factorization.

64149147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37130 (or 37127 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 64149147 is about 8009.3162629528. The cubic root of 64149147 is about 400.3104818569.

The spelling of 64149147 in words is "sixty-four million, one hundred forty-nine thousand, one hundred forty-seven".