102712249 has 8 divisors (see below), whose sum is σ = 111068928. Its totient is φ = 94612800.

The previous prime is 102712219. The next prime is 102712277. The reversal of 102712249 is 942217201.

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

It is a cyclic number.

It is not a de Polignac number, because 102712249 - 2⁵ = 102712217 is a prime.

It is a super-4 number, since 4×102712249⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102712219) 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, 63477 + ... + 65074.

It is an arithmetic number, because the mean of its divisors is an integer number (13883616).

Almost surely, 2^102712249 is an apocalyptic number.

It is an amenable number.

102712249 is a deficient number, since it is larger than the sum of its proper divisors (8356679).

102712249 is a wasteful number, since it uses less digits than its factorization.

102712249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128615.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 102712249 is about 10134.7051757809. The cubic root of 102712249 is about 468.3178876745.

The spelling of 102712249 in words is "one hundred two million, seven hundred twelve thousand, two hundred forty-nine".