103399251 has 8 divisors (see below), whose sum is σ = 138036480. Its totient is φ = 68847432.

The previous prime is 103399207. The next prime is 103399271. The reversal of 103399251 is 152993301.

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

It is not a de Polignac number, because 103399251 - 2¹⁰ = 103398227 is a prime.

It is a super-2 number, since 2×103399251² = 21382810214722002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103399271) 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, 18471 + ... + 23408.

It is an arithmetic number, because the mean of its divisors is an integer number (17254560).

Almost surely, 2^103399251 is an apocalyptic number.

103399251 is a deficient number, since it is larger than the sum of its proper divisors (34637229).

103399251 is an equidigital number, since it uses as much as digits as its factorization.

103399251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42705.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 103399251 is about 10168.5422259044. The cubic root of 103399251 is about 469.3596999924.

The spelling of 103399251 in words is "one hundred three million, three hundred ninety-nine thousand, two hundred fifty-one".