1146603645 has 24 divisors (see below), whose sum is σ = 2168124192. Its totient is φ = 555928800.

The previous prime is 1146603617. The next prime is 1146603671. The reversal of 1146603645 is 5463066411.

It is a happy number.

1146603645 is a `hidden beast` number, since 1 + 1 + 4 + 6 + 6 + 0 + 3 + 645 = 666.

It is not a de Polignac number, because 1146603645 - 2⁷ = 1146603517 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1157691 + ... + 1158680.

It is an arithmetic number, because the mean of its divisors is an integer number (90338508).

Almost surely, 2^1146603645 is an apocalyptic number.

1146603645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1146603645 is a deficient number, since it is larger than the sum of its proper divisors (1021520547).

1146603645 is a wasteful number, since it uses less digits than its factorization.

1146603645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316393 (or 2316390 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1146603645 is about 33861.5363650263. The cubic root of 1146603645 is about 1046.6571374014.

The spelling of 1146603645 in words is "one billion, one hundred forty-six million, six hundred three thousand, six hundred forty-five".