102664454 has 4 divisors (see below), whose sum is σ = 153996684. Its totient is φ = 51332226.

The previous prime is 102664453. The next prime is 102664459. The reversal of 102664454 is 454466201.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102664454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102664453) 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 as a sum of consecutive naturals, namely, 25666112 + ... + 25666115.

It is an arithmetic number, because the mean of its divisors is an integer number (38499171).

Almost surely, 2^102664454 is an apocalyptic number.

102664454 is a deficient number, since it is larger than the sum of its proper divisors (51332230).

102664454 is an equidigital number, since it uses as much as digits as its factorization.

102664454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51332229.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 102664454 is about 10132.3469147084. The cubic root of 102664454 is about 468.2452357548.

The spelling of 102664454 in words is "one hundred two million, six hundred sixty-four thousand, four hundred fifty-four".