102045646 has 4 divisors (see below), whose sum is σ = 153068472. Its totient is φ = 51022822.

The previous prime is 102045613. The next prime is 102045659. The reversal of 102045646 is 646540201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511410 + ... + 25511413.

It is an arithmetic number, because the mean of its divisors is an integer number (38267118).

Almost surely, 2^102045646 is an apocalyptic number.

102045646 is a deficient number, since it is larger than the sum of its proper divisors (51022826).

102045646 is an equidigital number, since it uses as much as digits as its factorization.

102045646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51022825.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 102045646 is about 10101.7644993338. The cubic root of 102045646 is about 467.3025595385.

Adding to 102045646 its reverse (646540201), we get a palindrome (748585847).

The spelling of 102045646 in words is "one hundred two million, forty-five thousand, six hundred forty-six".