108402645 has 32 divisors (see below), whose sum is σ = 187294464. Its totient is φ = 53222400.

The previous prime is 108402643. The next prime is 108402677. The reversal of 108402645 is 546204801.

It is not a de Polignac number, because 108402645 - 2¹ = 108402643 is a prime.

It is a super-2 number, since 2×108402645² = 23502266885992050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108402643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122605 + ... + 123485.

It is an arithmetic number, because the mean of its divisors is an integer number (5852952).

Almost surely, 2^108402645 is an apocalyptic number.

108402645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108402645 is a deficient number, since it is larger than the sum of its proper divisors (78891819).

108402645 is a wasteful number, since it uses less digits than its factorization.

108402645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 108402645 is about 10411.6590896936. The cubic root of 108402645 is about 476.8113956224.

It can be divided in two parts, 108 and 402645, that added together give a triangular number (402753 = T₈₉₇).

The spelling of 108402645 in words is "one hundred eight million, four hundred two thousand, six hundred forty-five".