102134451 has 4 divisors (see below), whose sum is σ = 136179272. Its totient is φ = 68089632.

The previous prime is 102134447. The next prime is 102134489. The reversal of 102134451 is 154431201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154431201 = 3 ⋅51477067.

It is not a de Polignac number, because 102134451 - 2² = 102134447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102134401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17022406 + ... + 17022411.

It is an arithmetic number, because the mean of its divisors is an integer number (34044818).

Almost surely, 2^102134451 is an apocalyptic number.

102134451 is a deficient number, since it is larger than the sum of its proper divisors (34044821).

102134451 is an equidigital number, since it uses as much as digits as its factorization.

102134451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34044820.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 102134451 is about 10106.1590626706. The cubic root of 102134451 is about 467.4380765781.

Adding to 102134451 its reverse (154431201), we get a palindrome (256565652).

The spelling of 102134451 in words is "one hundred two million, one hundred thirty-four thousand, four hundred fifty-one".