72134156 has 6 divisors (see below), whose sum is σ = 126234780. Its totient is φ = 36067076.

The previous prime is 72134149. The next prime is 72134173. The reversal of 72134156 is 65143127.

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 as a sum of consecutive naturals, namely, 9016766 + ... + 9016773.

It is an arithmetic number, because the mean of its divisors is an integer number (21039130).

Almost surely, 2^72134156 is an apocalyptic number.

It is an amenable number.

72134156 is a deficient number, since it is larger than the sum of its proper divisors (54100624).

72134156 is a wasteful number, since it uses less digits than its factorization.

72134156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18033543 (or 18033541 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 72134156 is about 8493.1829133723. The cubic root of 72134156 is about 416.2749892262.

The spelling of 72134156 in words is "seventy-two million, one hundred thirty-four thousand, one hundred fifty-six".