102425143 has 4 divisors (see below), whose sum is σ = 107815960. Its totient is φ = 97034328.

The previous prime is 102425137. The next prime is 102425149. The reversal of 102425143 is 341524201.

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

It is an interprime number because it is at equal distance from previous prime (102425137) and next prime (102425149).

It is a cyclic number.

It is not a de Polignac number, because 102425143 - 2²¹ = 100327991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102425149) 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, 2695380 + ... + 2695417.

It is an arithmetic number, because the mean of its divisors is an integer number (26953990).

Almost surely, 2^102425143 is an apocalyptic number.

102425143 is a deficient number, since it is larger than the sum of its proper divisors (5390817).

102425143 is an equidigital number, since it uses as much as digits as its factorization.

102425143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390816.

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

The square root of 102425143 is about 10120.5307667138. The cubic root of 102425143 is about 467.8811259066.

Adding to 102425143 its reverse (341524201), we get a palindrome (443949344).

The spelling of 102425143 in words is "one hundred two million, four hundred twenty-five thousand, one hundred forty-three".