1145001521645 has 32 divisors (see below), whose sum is σ = 1476506880000. Its totient is φ = 849290158080.

The previous prime is 1145001521597. The next prime is 1145001521647. The reversal of 1145001521645 is 5461251005411.

It is not a de Polignac number, because 1145001521645 - 2²⁶ = 1144934412781 is a prime.

It is a super-3 number, since 3×1145001521645³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145001521647) 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, 7461764 + ... + 7613666.

It is an arithmetic number, because the mean of its divisors is an integer number (46140840000).

Almost surely, 2^{1145001521645} is an apocalyptic number.

It is an amenable number.

1145001521645 is a deficient number, since it is larger than the sum of its proper divisors (331505358355).

1145001521645 is a wasteful number, since it uses less digits than its factorization.

1145001521645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153245.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 1145001521645 in words is "one trillion, one hundred forty-five billion, one million, five hundred twenty-one thousand, six hundred forty-five".