102162479 has 2 divisors, whose sum is σ = 102162480. Its totient is φ = 102162478.

The previous prime is 102162451. The next prime is 102162491. The reversal of 102162479 is 974261201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102162479 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102162779) 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, 51081239 + 51081240.

It is an arithmetic number, because the mean of its divisors is an integer number (51081240).

Almost surely, 2^102162479 is an apocalyptic number.

102162479 is a deficient number, since it is larger than the sum of its proper divisors (1).

102162479 is an equidigital number, since it uses as much as digits as its factorization.

102162479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 102162479 is about 10107.5456466939. The cubic root of 102162479 is about 467.4808311890.

The spelling of 102162479 in words is "one hundred two million, one hundred sixty-two thousand, four hundred seventy-nine".