2545145100 has 54 divisors (see below), whose sum is σ = 7977618740. Its totient is φ = 678705120.

The previous prime is 2545145093. The next prime is 2545145101. The reversal of 2545145100 is 15415452.

2545145100 is a `hidden beast` number, since 2 + 545 + 14 + 5 + 100 = 666.

It is not an unprimeable number, because it can be changed into a prime (2545145101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1413070 + ... + 1414869.

Almost surely, 2^2545145100 is an apocalyptic number.

2545145100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545145100 is an abundant number, since it is smaller than the sum of its proper divisors (5432473640).

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

2545145100 is a wasteful number, since it uses less digits than its factorization.

2545145100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827959 (or 2827949 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2545145100 is about 50449.4311167133. The cubic root of 2545145100 is about 1365.3296309742.

The spelling of 2545145100 in words is "two billion, five hundred forty-five million, one hundred forty-five thousand, one hundred".