102474987 has 4 divisors (see below), whose sum is σ = 136633320. Its totient is φ = 68316656.

The previous prime is 102474979. The next prime is 102474989. The reversal of 102474987 is 789474201.

It is a happy number.

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 102474987 - 2³ = 102474979 is a prime.

It is a super-2 number, since 2×102474987² = 21002245921300338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102474989) 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, 17079162 + ... + 17079167.

It is an arithmetic number, because the mean of its divisors is an integer number (34158330).

Almost surely, 2^102474987 is an apocalyptic number.

102474987 is a deficient number, since it is larger than the sum of its proper divisors (34158333).

102474987 is an equidigital number, since it uses as much as digits as its factorization.

102474987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34158332.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 102474987 is about 10122.9929862665. The cubic root of 102474987 is about 467.9570098943.

The spelling of 102474987 in words is "one hundred two million, four hundred seventy-four thousand, nine hundred eighty-seven".