102280907 has 4 divisors (see below), whose sum is σ = 102958416. Its totient is φ = 101603400.

The previous prime is 102280897. The next prime is 102280949. The reversal of 102280907 is 709082201.

It is a happy number.

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 102280907 - 2¹⁶ = 102215371 is a prime.

It is a super-2 number, since 2×102280907² = 20922767873485298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102280907.

It is not an unprimeable number, because it can be changed into a prime (102280207) 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, 338528 + ... + 338829.

It is an arithmetic number, because the mean of its divisors is an integer number (25739604).

Almost surely, 2^102280907 is an apocalyptic number.

102280907 is a deficient number, since it is larger than the sum of its proper divisors (677509).

102280907 is an equidigital number, since it uses as much as digits as its factorization.

102280907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677508.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 102280907 is about 10113.4023454029. The cubic root of 102280907 is about 467.6613979417.

The spelling of 102280907 in words is "one hundred two million, two hundred eighty thousand, nine hundred seven".