73198231 has 8 divisors (see below), whose sum is σ = 75450528. Its totient is φ = 70980000.

The previous prime is 73198211. The next prime is 73198249. The reversal of 73198231 is 13289137.

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-73198231 is a prime.

It is a super-2 number, since 2×73198231² = 10715962043058722, 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 (73198211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120 + ... + 12781.

It is an arithmetic number, because the mean of its divisors is an integer number (9431316).

Almost surely, 2^73198231 is an apocalyptic number.

73198231 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

73198231 is a deficient number, since it is larger than the sum of its proper divisors (2252297).

73198231 is a wasteful number, since it uses less digits than its factorization.

73198231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17033.

The product of its digits is 9072, while the sum is 34.

The square root of 73198231 is about 8555.5964724851. The cubic root of 73198231 is about 418.3118766298.

The spelling of 73198231 in words is "seventy-three million, one hundred ninety-eight thousand, two hundred thirty-one".