102661426 has 8 divisors (see below), whose sum is σ = 175991040. Its totient is φ = 43997748.

The previous prime is 102661409. The next prime is 102661451. The reversal of 102661426 is 624166201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102661394 and 102661403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666466 + ... + 3666493.

It is an arithmetic number, because the mean of its divisors is an integer number (21998880).

Almost surely, 2^102661426 is an apocalyptic number.

102661426 is a deficient number, since it is larger than the sum of its proper divisors (73329614).

102661426 is an equidigital number, since it uses as much as digits as its factorization.

102661426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7332968.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 102661426 is about 10132.1974911665. The cubic root of 102661426 is about 468.2406322124.

The spelling of 102661426 in words is "one hundred two million, six hundred sixty-one thousand, four hundred twenty-six".