102240469 has 2 divisors, whose sum is σ = 102240470. Its totient is φ = 102240468.

The previous prime is 102240433. The next prime is 102240503. The reversal of 102240469 is 964042201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53100369 + 49140100 = 7287^2 + 7010^2 .

It is an emirp because it is prime and its reverse (964042201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102240469 - 2²¹ = 100143317 is a prime.

It is a super-2 number, since 2×102240469² = 20906227002679922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102240769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51120234 + 51120235.

It is an arithmetic number, because the mean of its divisors is an integer number (51120235).

Almost surely, 2^102240469 is an apocalyptic number.

It is an amenable number.

102240469 is a deficient number, since it is larger than the sum of its proper divisors (1).

102240469 is an equidigital number, since it uses as much as digits as its factorization.

102240469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 102240469 is about 10111.4029194766. The cubic root of 102240469 is about 467.5997579446.

The spelling of 102240469 in words is "one hundred two million, two hundred forty thousand, four hundred sixty-nine".