72140567 has 4 divisors (see below), whose sum is σ = 72218496. Its totient is φ = 72062640.

The previous prime is 72140557. The next prime is 72140591. The reversal of 72140567 is 76504127.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72140567 - 2⁸ = 72140311 is a prime.

It is a super-2 number, since 2×72140567² = 10408522814162978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72140527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37559 + ... + 39432.

It is an arithmetic number, because the mean of its divisors is an integer number (18054624).

Almost surely, 2^72140567 is an apocalyptic number.

72140567 is a deficient number, since it is larger than the sum of its proper divisors (77929).

72140567 is an equidigital number, since it uses as much as digits as its factorization.

72140567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77928.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 72140567 is about 8493.5603253288. The cubic root of 72140567 is about 416.2873211553.

The spelling of 72140567 in words is "seventy-two million, one hundred forty thousand, five hundred sixty-seven".