102280455 has 16 divisors (see below), whose sum is σ = 181832160. Its totient is φ = 54549504.

The previous prime is 102280447. The next prime is 102280463. The reversal of 102280455 is 554082201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102280447) and next prime (102280463).

It is not a de Polignac number, because 102280455 - 2³ = 102280447 is a prime.

It is a super-2 number, since 2×102280455² = 20922582950014050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378682 + ... + 378951.

It is an arithmetic number, because the mean of its divisors is an integer number (11364510).

Almost surely, 2^102280455 is an apocalyptic number.

102280455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102280455 is a deficient number, since it is larger than the sum of its proper divisors (79551705).

102280455 is an equidigital number, since it uses as much as digits as its factorization.

102280455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757647 (or 757641 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 102280455 is about 10113.3799987937. The cubic root of 102280455 is about 467.6607090439.

The spelling of 102280455 in words is "one hundred two million, two hundred eighty thousand, four hundred fifty-five".