11142512145 has 32 divisors (see below), whose sum is σ = 19821623040. Its totient is φ = 5938859520.

The previous prime is 11142512141. The next prime is 11142512167. The reversal of 11142512145 is 54121524111.

11142512145 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 2 + 512 + 145 = 666.

It is not a de Polignac number, because 11142512145 - 2² = 11142512141 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (11142512141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191265 + ... + 242625.

It is an arithmetic number, because the mean of its divisors is an integer number (619425720).

Almost surely, 2^11142512145 is an apocalyptic number.

11142512145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11142512145 is a deficient number, since it is larger than the sum of its proper divisors (8679110895).

11142512145 is a wasteful number, since it uses less digits than its factorization.

11142512145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52982 (or 52976 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The spelling of 11142512145 in words is "eleven billion, one hundred forty-two million, five hundred twelve thousand, one hundred forty-five".