1145630520 has 64 divisors (see below), whose sum is σ = 3818772000. Its totient is φ = 305501184.

The previous prime is 1145630449. The next prime is 1145630539. The reversal of 1145630520 is 250365411.

1145630520 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 630 + 5 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 529305 + ... + 531464.

Almost surely, 2^1145630520 is an apocalyptic number.

1145630520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145630520 is an abundant number, since it is smaller than the sum of its proper divisors (2673141480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145630520 is a wasteful number, since it uses less digits than its factorization.

1145630520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060789 (or 1060779 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1145630520 is about 33847.1641352714. The cubic root of 1145630520 is about 1046.3609535342.

Adding to 1145630520 its reverse (250365411), we get a palindrome (1395995931).

The spelling of 1145630520 in words is "one billion, one hundred forty-five million, six hundred thirty thousand, five hundred twenty".