134640210 has 16 divisors (see below), whose sum is σ = 323136576. Its totient is φ = 35904048.

The previous prime is 134640197. The next prime is 134640263. The reversal of 134640210 is 12046431.

It is a super-2 number, since 2×134640210² = 36255972297688200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2243974 + ... + 2244033.

It is an arithmetic number, because the mean of its divisors is an integer number (20196036).

Almost surely, 2^134640210 is an apocalyptic number.

134640210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

134640210 is an abundant number, since it is smaller than the sum of its proper divisors (188496366).

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

134640210 is a wasteful number, since it uses less digits than its factorization.

134640210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488017.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 134640210 is about 11603.4568125193. The cubic root of 134640210 is about 512.5366509581.

Adding to 134640210 its reverse (12046431), we get a palindrome (146686641).

The spelling of 134640210 in words is "one hundred thirty-four million, six hundred forty thousand, two hundred ten".