134142720 has 144 divisors (see below), whose sum is σ = 433017312. Its totient is φ = 35389440.

The previous prime is 134142713. The next prime is 134142731. The reversal of 134142720 is 27241431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694944 + ... + 695136.

Almost surely, 2^134142720 is an apocalyptic number.

134142720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134142720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216508656).

134142720 is an abundant number, since it is smaller than the sum of its proper divisors (298874592).

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

134142720 is a wasteful number, since it uses less digits than its factorization.

134142720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 134142720 is about 11581.9998273183. Note that the first 3 decimals coincide. The cubic root of 134142720 is about 511.9046046230.

The spelling of 134142720 in words is "one hundred thirty-four million, one hundred forty-two thousand, seven hundred twenty".