1145553516 has 42 divisors (see below), whose sum is σ = 3005710652. Its totient is φ = 381850200.

The previous prime is 1145553511. The next prime is 1145553523. The reversal of 1145553516 is 6153555411.

1145553516 is a `hidden beast` number, since 11 + 45 + 553 + 51 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1145553511) 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 13 ways as a sum of consecutive naturals, for example, 193510 + ... + 199341.

Almost surely, 2^1145553516 is an apocalyptic number.

It is an amenable number.

1145553516 is an abundant number, since it is smaller than the sum of its proper divisors (1860157136).

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

1145553516 is an equidigital number, since it uses as much as digits as its factorization.

1145553516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392873 (or 392856 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 1145553516 is about 33846.0265910195. The cubic root of 1145553516 is about 1046.3375091564.

The spelling of 1145553516 in words is "one billion, one hundred forty-five million, five hundred fifty-three thousand, five hundred sixteen".