72270543 has 16 divisors (see below), whose sum is σ = 99200000. Its totient is φ = 46781280.

The previous prime is 72270521. The next prime is 72270593. The reversal of 72270543 is 34507227.

It is not a de Polignac number, because 72270543 - 2⁶ = 72270479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72270543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72270503) 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, 11958 + ... + 16956.

It is an arithmetic number, because the mean of its divisors is an integer number (6200000).

Almost surely, 2^72270543 is an apocalyptic number.

72270543 is a deficient number, since it is larger than the sum of its proper divisors (26929457).

72270543 is a wasteful number, since it uses less digits than its factorization.

72270543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 72270543 is about 8501.2083258793. The cubic root of 72270543 is about 416.5371801017.

The spelling of 72270543 in words is "seventy-two million, two hundred seventy thousand, five hundred forty-three".