102106631 has 8 divisors (see below), whose sum is σ = 112800000. Its totient is φ = 91648440.

The previous prime is 102106621. The next prime is 102106649. The reversal of 102106631 is 136601201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102106631 is a prime.

It is a super-2 number, since 2×102106631² = 20851528188340322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102106601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57881 + ... + 59618.

It is an arithmetic number, because the mean of its divisors is an integer number (14100000).

Almost surely, 2^102106631 is an apocalyptic number.

102106631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102106631 is a deficient number, since it is larger than the sum of its proper divisors (10693369).

102106631 is a wasteful number, since it uses less digits than its factorization.

102106631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117589.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 102106631 is about 10104.7825805408. The cubic root of 102106631 is about 467.3956315197.

Adding to 102106631 its reverse (136601201), we get a palindrome (238707832).

The spelling of 102106631 in words is "one hundred two million, one hundred six thousand, six hundred thirty-one".