102135015 has 24 divisors (see below), whose sum is σ = 177594768. Its totient is φ = 54299520.

The previous prime is 102134969. The next prime is 102135023. The reversal of 102135015 is 510531201.

It is not a de Polignac number, because 102135015 - 2⁶ = 102134951 is a prime.

It is a super-2 number, since 2×102135015² = 20863122578100450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11467 + ... + 18323.

It is an arithmetic number, because the mean of its divisors is an integer number (7399782).

Almost surely, 2^102135015 is an apocalyptic number.

102135015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102135015 is a deficient number, since it is larger than the sum of its proper divisors (75459753).

102135015 is a wasteful number, since it uses less digits than its factorization.

102135015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199 (or 7196 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 102135015 is about 10106.1869664083. The cubic root of 102135015 is about 467.4389369948.

Adding to 102135015 its reverse (510531201), we get a palindrome (612666216).

The spelling of 102135015 in words is "one hundred two million, one hundred thirty-five thousand, fifteen".