1146243645 has 24 divisors (see below), whose sum is σ = 1987779456. Its totient is φ = 611035488.

The previous prime is 1146243643. The next prime is 1146243677. The reversal of 1146243645 is 5463426411.

1146243645 is a `hidden beast` number, since 1 + 1 + 4 + 6 + 2 + 4 + 3 + 645 = 666.

It is not a de Polignac number, because 1146243645 - 2¹ = 1146243643 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146243641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114304 + ... + 123926.

It is an arithmetic number, because the mean of its divisors is an integer number (82824144).

Almost surely, 2^1146243645 is an apocalyptic number.

1146243645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1146243645 is a deficient number, since it is larger than the sum of its proper divisors (841535811).

1146243645 is a wasteful number, since it uses less digits than its factorization.

1146243645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12281 (or 12278 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1146243645 is about 33856.2201818218. The cubic root of 1146243645 is about 1046.5475860284.

The spelling of 1146243645 in words is "one billion, one hundred forty-six million, two hundred forty-three thousand, six hundred forty-five".