2174540745 has 48 divisors (see below), whose sum is σ = 3855297600. Its totient is φ = 1045594368.

The previous prime is 2174540743. The next prime is 2174540761. The reversal of 2174540745 is 5470454712.

2174540745 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2174540745 - 2¹ = 2174540743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2174540741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99031 + ... + 118979.

It is an arithmetic number, because the mean of its divisors is an integer number (80318700).

Almost surely, 2^2174540745 is an apocalyptic number.

It is an amenable number.

2174540745 is a deficient number, since it is larger than the sum of its proper divisors (1680756855).

2174540745 is a wasteful number, since it uses less digits than its factorization.

2174540745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20026 (or 20013 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 39.

The square root of 2174540745 is about 46631.9712750812. The cubic root of 2174540745 is about 1295.5549854087.

The spelling of 2174540745 in words is "two billion, one hundred seventy-four million, five hundred forty thousand, seven hundred forty-five".