72113351 has 8 divisors (see below), whose sum is σ = 73281024. Its totient is φ = 70950040.

The previous prime is 72113329. The next prime is 72113359. The reversal of 72113351 is 15331127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72113351 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 (72113359) 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 7 ways as a sum of consecutive naturals, for example, 52070 + ... + 53436.

It is an arithmetic number, because the mean of its divisors is an integer number (9160128).

Almost surely, 2^72113351 is an apocalyptic number.

72113351 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

72113351 is a deficient number, since it is larger than the sum of its proper divisors (1167673).

72113351 is a wasteful number, since it uses less digits than its factorization.

72113351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181.

The product of its digits is 630, while the sum is 23.

The square root of 72113351 is about 8491.9580192085. The cubic root of 72113351 is about 416.2349645722.

Adding to 72113351 its reverse (15331127), we get a palindrome (87444478).

The spelling of 72113351 in words is "seventy-two million, one hundred thirteen thousand, three hundred fifty-one".