72113230 has 32 divisors (see below), whose sum is σ = 148639680. Its totient is φ = 24675840.

The previous prime is 72113207. The next prime is 72113233. The reversal of 72113230 is 3231127.

It is a junction number, because it is equal to n+sod(n) for n = 72113198 and 72113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72113233) 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, 70120 + ... + 71140.

It is an arithmetic number, because the mean of its divisors is an integer number (4644990).

Almost surely, 2^72113230 is an apocalyptic number.

72113230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72113230 is an abundant number, since it is smaller than the sum of its proper divisors (76526450).

72113230 is a wasteful number, since it uses less digits than its factorization.

72113230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 72113230 is about 8491.9508948180. The cubic root of 72113230 is about 416.2347317699.

Adding to 72113230 its reverse (3231127), we get a palindrome (75344357).

The spelling of 72113230 in words is "seventy-two million, one hundred thirteen thousand, two hundred thirty".