1145155511452 has 48 divisors (see below), whose sum is σ = 2116134074880. Its totient is φ = 542238606000.

The previous prime is 1145155511429. The next prime is 1145155511459. The reversal of 1145155511452 is 2541155515411.

It is a super-2 number, since 2×1145155511452² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145155511459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93468327 + ... + 93480577.

It is an arithmetic number, because the mean of its divisors is an integer number (44086126560).

Almost surely, 2^{1145155511452} is an apocalyptic number.

It is an amenable number.

1145155511452 is a deficient number, since it is larger than the sum of its proper divisors (970978563428).

1145155511452 is a wasteful number, since it uses less digits than its factorization.

1145155511452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15719 (or 15679 counting only the distinct ones).

The product of its digits is 100000, while the sum is 40.

The spelling of 1145155511452 in words is "one trillion, one hundred forty-five billion, one hundred fifty-five million, five hundred eleven thousand, four hundred fifty-two".