65474136 has 128 divisors (see below), whose sum is σ = 223910400. Its totient is φ = 17262720.

The previous prime is 65474111. The next prime is 65474137. The reversal of 65474136 is 63147456.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 65474136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65474137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17991 + ... + 21321.

It is an arithmetic number, because the mean of its divisors is an integer number (1749300).

Almost surely, 2^65474136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65474136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111955200).

65474136 is an abundant number, since it is smaller than the sum of its proper divisors (158436264).

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

65474136 is a wasteful number, since it uses less digits than its factorization.

65474136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3356 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 65474136 is about 8091.6089870927. The cubic root of 65474136 is about 403.0478344458.

The spelling of 65474136 in words is "sixty-five million, four hundred seventy-four thousand, one hundred thirty-six".