102064631 has 4 divisors (see below), whose sum is σ = 103794600. Its totient is φ = 100334664.

The previous prime is 102064619. The next prime is 102064643. The reversal of 102064631 is 136460201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (102064619) and next prime (102064643).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102064631 is a prime.

It is a super-2 number, since 2×102064631² = 20834377802332322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102064597 and 102064606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102064681) 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, 864896 + ... + 865013.

It is an arithmetic number, because the mean of its divisors is an integer number (25948650).

Almost surely, 2^102064631 is an apocalyptic number.

102064631 is a deficient number, since it is larger than the sum of its proper divisors (1729969).

102064631 is an equidigital number, since it uses as much as digits as its factorization.

102064631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729968.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 102064631 is about 10102.7041429510. The cubic root of 102064631 is about 467.3315373843.

The spelling of 102064631 in words is "one hundred two million, sixty-four thousand, six hundred thirty-one".