102658943 has 4 divisors (see below), whose sum is σ = 102800880. Its totient is φ = 102517008.

The previous prime is 102658939. The next prime is 102658973. The reversal of 102658943 is 349856201.

It is a happy number.

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 102658943 - 2² = 102658939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102658897 and 102658906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102658973) 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, 69878 + ... + 71331.

It is an arithmetic number, because the mean of its divisors is an integer number (25700220).

Almost surely, 2^102658943 is an apocalyptic number.

102658943 is a deficient number, since it is larger than the sum of its proper divisors (141937).

102658943 is an equidigital number, since it uses as much as digits as its factorization.

102658943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141936.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 102658943 is about 10132.0749602438. The cubic root of 102658943 is about 468.2368571792.

The spelling of 102658943 in words is "one hundred two million, six hundred fifty-eight thousand, nine hundred forty-three".