102631619 has 8 divisors (see below), whose sum is σ = 103680000. Its totient is φ = 101588872.

The previous prime is 102631577. The next prime is 102631631. The reversal of 102631619 is 916136201.

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

It is a cyclic number.

It is not a de Polignac number, because 102631619 - 2²⁰ = 101583043 is a prime.

It is a super-2 number, since 2×102631619² = 21066498437122322, 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 = 102631591 and 102631600.

It is not an unprimeable number, because it can be changed into a prime (102631679) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41582 + ... + 43980.

It is an arithmetic number, because the mean of its divisors is an integer number (12960000).

Almost surely, 2^102631619 is an apocalyptic number.

102631619 is a deficient number, since it is larger than the sum of its proper divisors (1048381).

102631619 is a wasteful number, since it uses less digits than its factorization.

102631619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 102631619 is about 10130.7264793795. The cubic root of 102631619 is about 468.1953110694.

The spelling of 102631619 in words is "one hundred two million, six hundred thirty-one thousand, six hundred nineteen".