102117454 has 16 divisors (see below), whose sum is σ = 157317120. Its totient is φ = 49696920.

The previous prime is 102117409. The next prime is 102117461. The reversal of 102117454 is 454711201.

It is a super-2 number, since 2×102117454² = 20855948822884232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6667 + ... + 15769.

It is an arithmetic number, because the mean of its divisors is an integer number (9832320).

Almost surely, 2^102117454 is an apocalyptic number.

102117454 is a deficient number, since it is larger than the sum of its proper divisors (55199666).

102117454 is an equidigital number, since it uses as much as digits as its factorization.

102117454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9255.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 102117454 is about 10105.3181048396. The cubic root of 102117454 is about 467.4121451198.

Adding to 102117454 its reverse (454711201), we get a palindrome (556828655).

The spelling of 102117454 in words is "one hundred two million, one hundred seventeen thousand, four hundred fifty-four".