102535990 has 16 divisors (see below), whose sum is σ = 186020352. Its totient is φ = 40690944.

The previous prime is 102535987. The next prime is 102535997. The reversal of 102535990 is 99535201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102535997) 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 7 ways as a sum of consecutive naturals, for example, 39099 + ... + 41638.

It is an arithmetic number, because the mean of its divisors is an integer number (11626272).

Almost surely, 2^102535990 is an apocalyptic number.

102535990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102535990 is a deficient number, since it is larger than the sum of its proper divisors (83484362).

102535990 is a wasteful number, since it uses less digits than its factorization.

102535990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80871.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 102535990 is about 10126.0056290721. The cubic root of 102535990 is about 468.0498491962.

The spelling of 102535990 in words is "one hundred two million, five hundred thirty-five thousand, nine hundred ninety".