134972220 has 24 divisors (see below), whose sum is σ = 377922384. Its totient is φ = 35992576.

The previous prime is 134972209. The next prime is 134972267. The reversal of 134972220 is 22279431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1124709 + ... + 1124828.

It is an arithmetic number, because the mean of its divisors is an integer number (15746766).

Almost surely, 2^134972220 is an apocalyptic number.

134972220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134972220 is an abundant number, since it is smaller than the sum of its proper divisors (242950164).

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

134972220 is a wasteful number, since it uses less digits than its factorization.

134972220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249549 (or 2249547 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 134972220 is about 11617.7545162566. The cubic root of 134972220 is about 512.9575940841.

The spelling of 134972220 in words is "one hundred thirty-four million, nine hundred seventy-two thousand, two hundred twenty".