102426915 has 16 divisors (see below), whose sum is σ = 168313248. Its totient is φ = 53150976.

The previous prime is 102426913. The next prime is 102426931. The reversal of 102426915 is 519624201.

It is not a de Polignac number, because 102426915 - 2¹ = 102426913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102426911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91722 + ... + 92831.

It is an arithmetic number, because the mean of its divisors is an integer number (10519578).

Almost surely, 2^102426915 is an apocalyptic number.

102426915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102426915 is a deficient number, since it is larger than the sum of its proper divisors (65886333).

102426915 is a wasteful number, since it uses less digits than its factorization.

102426915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184598.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 102426915 is about 10120.6183111508. The cubic root of 102426915 is about 467.8838240741.

The spelling of 102426915 in words is "one hundred two million, four hundred twenty-six thousand, nine hundred fifteen".