102123454 has 16 divisors (see below), whose sum is σ = 164948400. Its totient is φ = 47242624.

The previous prime is 102123451. The next prime is 102123487. The reversal of 102123454 is 454321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23449 + ... + 27460.

It is an arithmetic number, because the mean of its divisors is an integer number (10309275).

Almost surely, 2^102123454 is an apocalyptic number.

102123454 is a deficient number, since it is larger than the sum of its proper divisors (62824946).

102123454 is a wasteful number, since it uses less digits than its factorization.

102123454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50987.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 102123454 is about 10105.6149738648. The cubic root of 102123454 is about 467.4212993431.

Adding to 102123454 its reverse (454321201), we get a palindrome (556444655).

The spelling of 102123454 in words is "one hundred two million, one hundred twenty-three thousand, four hundred fifty-four".