64509150 has 24 divisors (see below), whose sum is σ = 159983064. Its totient is φ = 17202400.

The previous prime is 64509149. The next prime is 64509157. The reversal of 64509150 is 5190546.

It is a super-2 number, since 2×64509150² = 8322860867445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64509157) 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, 214881 + ... + 215180.

It is an arithmetic number, because the mean of its divisors is an integer number (6665961).

Almost surely, 2^64509150 is an apocalyptic number.

64509150 is an abundant number, since it is smaller than the sum of its proper divisors (95473914).

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

64509150 is a wasteful number, since it uses less digits than its factorization.

64509150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430076 (or 430071 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 64509150 is about 8031.7588360209. The cubic root of 64509150 is about 401.0579286672.

Adding to 64509150 its reverse (5190546), we get a palindrome (69699696).

The spelling of 64509150 in words is "sixty-four million, five hundred nine thousand, one hundred fifty".