102031287 has 8 divisors (see below), whose sum is σ = 136106880. Its totient is φ = 67988280.

The previous prime is 102031283. The next prime is 102031301. The reversal of 102031287 is 782130201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102031287 - 2² = 102031283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462 + ... + 14292.

It is an arithmetic number, because the mean of its divisors is an integer number (17013360).

Almost surely, 2^102031287 is an apocalyptic number.

102031287 is a deficient number, since it is larger than the sum of its proper divisors (34075593).

102031287 is a wasteful number, since it uses less digits than its factorization.

102031287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16293.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 102031287 is about 10101.0537569107. The cubic root of 102031287 is about 467.2806402228.

Adding to 102031287 its reverse (782130201), we get a palindrome (884161488).

The spelling of 102031287 in words is "one hundred two million, thirty-one thousand, two hundred eighty-seven".