102456143 has 4 divisors (see below), whose sum is σ = 104838888. Its totient is φ = 100073400.

The previous prime is 102456119. The next prime is 102456181. The reversal of 102456143 is 341654201.

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

It is a cyclic number.

It is not a de Polignac number, because 102456143 - 2⁸ = 102455887 is a prime.

It is a super-2 number, since 2×102456143² = 20994522476872898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102456103) 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, 1191308 + ... + 1191393.

It is an arithmetic number, because the mean of its divisors is an integer number (26209722).

Almost surely, 2^102456143 is an apocalyptic number.

102456143 is a deficient number, since it is larger than the sum of its proper divisors (2382745).

102456143 is an equidigital number, since it uses as much as digits as its factorization.

102456143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382744.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 102456143 is about 10122.0621910755. The cubic root of 102456143 is about 467.9283241219.

The spelling of 102456143 in words is "one hundred two million, four hundred fifty-six thousand, one hundred forty-three".