102770645 has 16 divisors (see below), whose sum is σ = 129613440. Its totient is φ = 78128064.

The previous prime is 102770609. The next prime is 102770651. The reversal of 102770645 is 546077201.

It is a cyclic number.

It is not a de Polignac number, because 102770645 - 2⁶ = 102770581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1496 + ... + 14414.

It is an arithmetic number, because the mean of its divisors is an integer number (8100840).

Almost surely, 2^102770645 is an apocalyptic number.

It is an amenable number.

102770645 is a deficient number, since it is larger than the sum of its proper divisors (26842795).

102770645 is a wasteful number, since it uses less digits than its factorization.

102770645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 102770645 is about 10137.5857579603. The cubic root of 102770645 is about 468.4066233105.

The spelling of 102770645 in words is "one hundred two million, seven hundred seventy thousand, six hundred forty-five".