72160007 has 4 divisors (see below), whose sum is σ = 72177456. Its totient is φ = 72142560.

The previous prime is 72159973. The next prime is 72160021. The reversal of 72160007 is 70006127.

It is a happy number.

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 72160007 - 2⁸ = 72159751 is a prime.

It is a super-2 number, since 2×72160007² = 10414133220480098, 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 (72160037) 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 3 ways as a sum of consecutive naturals, for example, 1382 + ... + 12092.

It is an arithmetic number, because the mean of its divisors is an integer number (18044364).

Almost surely, 2^72160007 is an apocalyptic number.

72160007 is a deficient number, since it is larger than the sum of its proper divisors (17449).

72160007 is a wasteful number, since it uses less digits than its factorization.

72160007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17448.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 72160007 is about 8494.7046446595. The cubic root of 72160007 is about 416.3247106532.

The spelling of 72160007 in words is "seventy-two million, one hundred sixty thousand, seven".