2145153530500 has 24 divisors (see below), whose sum is σ = 4685015311704. Its totient is φ = 858061412000.

The previous prime is 2145153530461. The next prime is 2145153530503. The reversal of 2145153530500 is 50353515412.

It can be written as a sum of positive squares in 4 ways, for example, as 137836957696 + 2007316572804 = 371264^2 + 1416798^2 .

It is a super-2 number, since 2×2145153530500² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145153530503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2145153031 + ... + 2145154030.

It is an arithmetic number, because the mean of its divisors is an integer number (195208971321).

Almost surely, 2^{2145153530500} is an apocalyptic number.

2145153530500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145153530500 is an abundant number, since it is smaller than the sum of its proper divisors (2539861781204).

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

2145153530500 is a wasteful number, since it uses less digits than its factorization.

2145153530500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290307080 (or 4290307068 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 2145153530500 in words is "two trillion, one hundred forty-five billion, one hundred fifty-three million, five hundred thirty thousand, five hundred".