2045130140 has 24 divisors (see below), whose sum is σ = 4433315712. Its totient is φ = 791663040.

The previous prime is 2045130137. The next prime is 2045130163. The reversal of 2045130140 is 410315402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648679 + ... + 1649918.

It is an arithmetic number, because the mean of its divisors is an integer number (184721488).

Almost surely, 2^2045130140 is an apocalyptic number.

2045130140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045130140 is an abundant number, since it is smaller than the sum of its proper divisors (2388185572).

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

2045130140 is a wasteful number, since it uses less digits than its factorization.

2045130140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298637 (or 3298635 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2045130140 is about 45223.1151072104. The cubic root of 2045130140 is about 1269.3273847557.

Adding to 2045130140 its reverse (410315402), we get a palindrome (2455445542).

The spelling of 2045130140 in words is "two billion, forty-five million, one hundred thirty thousand, one hundred forty".