102280459 has 4 divisors (see below), whose sum is σ = 102304000. Its totient is φ = 102256920.

The previous prime is 102280447. The next prime is 102280463. The reversal of 102280459 is 954082201.

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 102280459 - 2²³ = 93891851 is a prime.

It is a super-2 number, since 2×102280459² = 20922584586501362, 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 102280459.

It is not an unprimeable number, because it can be changed into a prime (102280499) 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, 3147 + ... + 14644.

It is an arithmetic number, because the mean of its divisors is an integer number (25576000).

Almost surely, 2^102280459 is an apocalyptic number.

102280459 is a deficient number, since it is larger than the sum of its proper divisors (23541).

102280459 is an equidigital number, since it uses as much as digits as its factorization.

102280459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23540.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 102280459 is about 10113.3801965515. The cubic root of 102280459 is about 467.6607151403.

The spelling of 102280459 in words is "one hundred two million, two hundred eighty thousand, four hundred fifty-nine".