64210146 has 64 divisors (see below), whose sum is σ = 172440576. Its totient is φ = 15393600.

The previous prime is 64210129. The next prime is 64210163. The reversal of 64210146 is 64101246.

It is an interprime number because it is at equal distance from previous prime (64210129) and next prime (64210163).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 661 + ... + 11351.

It is an arithmetic number, because the mean of its divisors is an integer number (2694384).

Almost surely, 2^64210146 is an apocalyptic number.

64210146 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 64210146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86220288).

64210146 is an abundant number, since it is smaller than the sum of its proper divisors (108230430).

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

64210146 is a wasteful number, since it uses less digits than its factorization.

64210146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10727.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 64210146 is about 8013.1233610871. The cubic root of 64210146 is about 400.4373258577.

Subtracting from 64210146 its reverse (64101246), we obtain a square (108900 = 330²).

The spelling of 64210146 in words is "sixty-four million, two hundred ten thousand, one hundred forty-six".