134253440 has 32 divisors (see below), whose sum is σ = 320951160. Its totient is φ = 53701120.

The previous prime is 134253433. The next prime is 134253443. The reversal of 134253440 is 44352431.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134253443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104246 + ... + 105525.

Almost surely, 2^134253440 is an apocalyptic number.

134253440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134253440 is an abundant number, since it is smaller than the sum of its proper divisors (186697720).

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

134253440 is an equidigital number, since it uses as much as digits as its factorization.

134253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209790 (or 209778 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 134253440 is about 11586.7786722626. The cubic root of 134253440 is about 512.0454061293.

The spelling of 134253440 in words is "one hundred thirty-four million, two hundred fifty-three thousand, four hundred forty".