72772143 has 16 divisors (see below), whose sum is σ = 98242560. Its totient is φ = 47912256.

The previous prime is 72772123. The next prime is 72772153. The reversal of 72772143 is 34127727.

It is not a de Polignac number, because 72772143 - 2⁶ = 72772079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72772123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155596 + ... + 156062.

It is an arithmetic number, because the mean of its divisors is an integer number (6140160).

Almost surely, 2^72772143 is an apocalyptic number.

72772143 is a deficient number, since it is larger than the sum of its proper divisors (25470417).

72772143 is a wasteful number, since it uses less digits than its factorization.

72772143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006.

The product of its digits is 16464, while the sum is 33.

The square root of 72772143 is about 8530.6590015074. The cubic root of 72772143 is about 417.4986300408.

The spelling of 72772143 in words is "seventy-two million, seven hundred seventy-two thousand, one hundred forty-three".