102280015 has 8 divisors (see below), whose sum is σ = 125590608. Its totient is φ = 79920960.

The previous prime is 102279997. The next prime is 102280019. The reversal of 102280015 is 510082201.

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

It is a de Polignac number, because none of the positive numbers 2^k-102280015 is a prime.

It is a super-2 number, since 2×102280015² = 20922402936800450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102279974 and 102280001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102280019) 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, 237646 + ... + 238075.

It is an arithmetic number, because the mean of its divisors is an integer number (15698826).

Almost surely, 2^102280015 is an apocalyptic number.

102280015 is a deficient number, since it is larger than the sum of its proper divisors (23310593).

102280015 is an equidigital number, since it uses as much as digits as its factorization.

102280015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475769.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 102280015 is about 10113.3582454099. The cubic root of 102280015 is about 467.6600384335.

The spelling of 102280015 in words is "one hundred two million, two hundred eighty thousand, fifteen".