540990145 has 12 divisors (see below), whose sum is σ = 670811220. Its totient is φ = 418827360.

The previous prime is 540990137. The next prime is 540990161. The reversal of 540990145 is 541099045.

It can be written as a sum of positive squares in 2 ways, for example, as 263867536 + 277122609 = 16244^2 + 16647^2 .

It is not a de Polignac number, because 540990145 - 2³ = 540990137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51490 + ... + 61099.

It is an arithmetic number, because the mean of its divisors is an integer number (55900935).

Almost surely, 2^540990145 is an apocalyptic number.

It is an amenable number.

540990145 is a deficient number, since it is larger than the sum of its proper divisors (129821075).

540990145 is a wasteful number, since it uses less digits than its factorization.

540990145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112656 (or 112625 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 540990145 is about 23259.1948484895. The cubic root of 540990145 is about 814.8226972004.

Subtracting 540990145 from its reverse (541099045), we obtain a square (108900 = 330²).

The spelling of 540990145 in words is "five hundred forty million, nine hundred ninety thousand, one hundred forty-five".