72140701 has 4 divisors (see below), whose sum is σ = 75937600. Its totient is φ = 68343804.

The previous prime is 72140693. The next prime is 72140729. The reversal of 72140701 is 10704127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72140701 - 2³ = 72140693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72140801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898421 + ... + 1898458.

It is an arithmetic number, because the mean of its divisors is an integer number (18984400).

Almost surely, 2^72140701 is an apocalyptic number.

It is an amenable number.

72140701 is a deficient number, since it is larger than the sum of its proper divisors (3796899).

72140701 is a wasteful number, since it uses less digits than its factorization.

72140701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796898.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 72140701 is about 8493.5682136544. The cubic root of 72140701 is about 416.2875789043.

Adding to 72140701 its reverse (10704127), we get a palindrome (82844828).

The spelling of 72140701 in words is "seventy-two million, one hundred forty thousand, seven hundred one".