102247631 has 2 divisors, whose sum is σ = 102247632. Its totient is φ = 102247630.

The previous prime is 102247609. The next prime is 102247633. The reversal of 102247631 is 136742201.

It is a strong prime.

It is an emirp because it is prime and its reverse (136742201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102247631 is a prime.

It is a super-2 number, since 2×102247631² = 20909156090224322, which contains 22 as substring.

Together with 102247633, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102247631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102247633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51123815 + 51123816.

It is an arithmetic number, because the mean of its divisors is an integer number (51123816).

Almost surely, 2^102247631 is an apocalyptic number.

102247631 is a deficient number, since it is larger than the sum of its proper divisors (1).

102247631 is an equidigital number, since it uses as much as digits as its factorization.

102247631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 102247631 is about 10111.7570678888. The cubic root of 102247631 is about 467.6106762281.

Adding to 102247631 its reverse (136742201), we get a palindrome (238989832).

The spelling of 102247631 in words is "one hundred two million, two hundred forty-seven thousand, six hundred thirty-one".