72142953 has 8 divisors (see below), whose sum is σ = 96622848. Its totient is φ = 47879184.

The previous prime is 72142937. The next prime is 72142997. The reversal of 72142953 is 35924127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72142953 - 2⁴ = 72142937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72142153) 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 7 ways as a sum of consecutive naturals, for example, 53250 + ... + 54587.

It is an arithmetic number, because the mean of its divisors is an integer number (12077856).

Almost surely, 2^72142953 is an apocalyptic number.

It is an amenable number.

72142953 is a deficient number, since it is larger than the sum of its proper divisors (24479895).

72142953 is a wasteful number, since it uses less digits than its factorization.

72142953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108063.

The product of its digits is 15120, while the sum is 33.

The square root of 72142953 is about 8493.7007835219. The cubic root of 72142953 is about 416.2919105777.

The spelling of 72142953 in words is "seventy-two million, one hundred forty-two thousand, nine hundred fifty-three".