65132490 has 32 divisors (see below), whose sum is σ = 156686400. Its totient is φ = 17327744.

The previous prime is 65132471. The next prime is 65132503. The reversal of 65132490 is 9423156.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11686 + ... + 16334.

It is an arithmetic number, because the mean of its divisors is an integer number (4896450).

Almost surely, 2^65132490 is an apocalyptic number.

65132490 is an abundant number, since it is smaller than the sum of its proper divisors (91553910).

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

65132490 is a wasteful number, since it uses less digits than its factorization.

65132490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 65132490 is about 8070.4702465222. The cubic root of 65132490 is about 402.3455730002.

The spelling of 65132490 in words is "sixty-five million, one hundred thirty-two thousand, four hundred ninety".