2045501131 has 4 divisors (see below), whose sum is σ = 2064618072. Its totient is φ = 2026384192.

The previous prime is 2045501123. The next prime is 2045501137. The reversal of 2045501131 is 1311055402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2045501131 - 2³ = 2045501123 is a prime.

It is a super-2 number, since 2×2045501131² = 8368149753844558322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2045501137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9558310 + ... + 9558523.

It is an arithmetic number, because the mean of its divisors is an integer number (516154518).

Almost surely, 2^2045501131 is an apocalyptic number.

2045501131 is a deficient number, since it is larger than the sum of its proper divisors (19116941).

2045501131 is a wasteful number, since it uses less digits than its factorization.

2045501131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19116940.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2045501131 is about 45227.2167063152. The cubic root of 2045501131 is about 1269.4041330197.

Adding to 2045501131 its reverse (1311055402), we get a palindrome (3356556533).

The spelling of 2045501131 in words is "two billion, forty-five million, five hundred one thousand, one hundred thirty-one".