64154563 has 6 divisors (see below), whose sum is σ = 70517132. Its totient is φ = 58322220.

The previous prime is 64154561. The next prime is 64154591. The reversal of 64154563 is 36545146.

It is not a de Polignac number, because 64154563 - 2¹ = 64154561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64154561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264981 + ... + 265222.

Almost surely, 2^64154563 is an apocalyptic number.

64154563 is a deficient number, since it is larger than the sum of its proper divisors (6362569).

64154563 is a wasteful number, since it uses less digits than its factorization.

64154563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530225 (or 530214 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 64154563 is about 8009.6543620808. The cubic root of 64154563 is about 400.3217473772.

The spelling of 64154563 in words is "sixty-four million, one hundred fifty-four thousand, five hundred sixty-three".