102799951 has 4 divisors (see below), whose sum is σ = 104987232. Its totient is φ = 100612672.

The previous prime is 102799943. The next prime is 102799967. The reversal of 102799951 is 159997201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102799951 - 2³ = 102799943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102799898 and 102799907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102799651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093570 + ... + 1093663.

It is an arithmetic number, because the mean of its divisors is an integer number (26246808).

Almost surely, 2^102799951 is an apocalyptic number.

102799951 is a deficient number, since it is larger than the sum of its proper divisors (2187281).

102799951 is an equidigital number, since it uses as much as digits as its factorization.

102799951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187280.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 102799951 is about 10139.0310681051. The cubic root of 102799951 is about 468.4511425728.

The spelling of 102799951 in words is "one hundred two million, seven hundred ninety-nine thousand, nine hundred fifty-one".