134397720 has 48 divisors (see below), whose sum is σ = 436793760. Its totient is φ = 35839296.

The previous prime is 134397719. The next prime is 134397721. The reversal of 134397720 is 27793431.

It is an interprime number because it is at equal distance from previous prime (134397719) and next prime (134397721).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134397721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186304 + ... + 187023.

It is an arithmetic number, because the mean of its divisors is an integer number (9099870).

Almost surely, 2^134397720 is an apocalyptic number.

134397720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134397720 is an abundant number, since it is smaller than the sum of its proper divisors (302396040).

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

134397720 is a wasteful number, since it uses less digits than its factorization.

134397720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373344 (or 373337 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 134397720 is about 11593.0030621923. The cubic root of 134397720 is about 512.2287694305.

The spelling of 134397720 in words is "one hundred thirty-four million, three hundred ninety-seven thousand, seven hundred twenty".