102131794 has 32 divisors (see below), whose sum is σ = 167523840. Its totient is φ = 46569600.

The previous prime is 102131789. The next prime is 102131819. The reversal of 102131794 is 497131201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76654 + ... + 77974.

It is an arithmetic number, because the mean of its divisors is an integer number (5235120).

Almost surely, 2^102131794 is an apocalyptic number.

102131794 is a deficient number, since it is larger than the sum of its proper divisors (65392046).

102131794 is a wasteful number, since it uses less digits than its factorization.

102131794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 102131794 is about 10106.0276073243. The cubic root of 102131794 is about 467.4340231180.

Adding to 102131794 its reverse (497131201), we get a palindrome (599262995).

The spelling of 102131794 in words is "one hundred two million, one hundred thirty-one thousand, seven hundred ninety-four".