72957141 has 6 divisors (see below), whose sum is σ = 105382550. Its totient is φ = 48638088.

The previous prime is 72957107. The next prime is 72957191. The reversal of 72957141 is 14175927.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 55442916 + 17514225 = 7446^2 + 4185^2 .

It is not a de Polignac number, because 72957141 - 2⁶ = 72957077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72957096 and 72957105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72957191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4053166 + ... + 4053183.

Almost surely, 2^72957141 is an apocalyptic number.

It is an amenable number.

72957141 is a deficient number, since it is larger than the sum of its proper divisors (32425409).

72957141 is a wasteful number, since it uses less digits than its factorization.

72957141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8106355 (or 8106352 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 72957141 is about 8541.4952438083. The cubic root of 72957141 is about 417.8521126222.

The spelling of 72957141 in words is "seventy-two million, nine hundred fifty-seven thousand, one hundred forty-one".