64147854 has 16 divisors (see below), whose sum is σ = 128418048. Its totient is φ = 21362232.

The previous prime is 64147843. The next prime is 64147859. The reversal of 64147854 is 45874146.

It is a super-2 number, since 2×64147854² = 8229894345610632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64147859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (8026128).

Almost surely, 2^64147854 is an apocalyptic number.

64147854 is an abundant number, since it is smaller than the sum of its proper divisors (64270194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64147854 is a wasteful number, since it uses less digits than its factorization.

64147854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199.

The product of its digits is 107520, while the sum is 39.

The square root of 64147854 is about 8009.2355440454. The cubic root of 64147854 is about 400.3077922657.

The spelling of 64147854 in words is "sixty-four million, one hundred forty-seven thousand, eight hundred fifty-four".