1145455115 has 48 divisors (see below), whose sum is σ = 1675920384. Its totient is φ = 748440000.

The previous prime is 1145455099. The next prime is 1145455117. The reversal of 1145455115 is 5115545411.

It is not a de Polignac number, because 1145455115 - 2⁴ = 1145455099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145455117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 507740 + ... + 509990.

It is an arithmetic number, because the mean of its divisors is an integer number (34915008).

Almost surely, 2^1145455115 is an apocalyptic number.

1145455115 is a deficient number, since it is larger than the sum of its proper divisors (530465269).

1145455115 is a wasteful number, since it uses less digits than its factorization.

1145455115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368 (or 2361 counting only the distinct ones).

The product of its digits is 10000, while the sum is 32.

The square root of 1145455115 is about 33844.5729031997. The cubic root of 1145455115 is about 1046.3075487911.

The spelling of 1145455115 in words is "one billion, one hundred forty-five million, four hundred fifty-five thousand, one hundred fifteen".