540214145 has 4 divisors (see below), whose sum is σ = 648256980. Its totient is φ = 432171312.

The previous prime is 540214123. The next prime is 540214183. The reversal of 540214145 is 541412045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541412045 = 5 ⋅108282409.

It can be written as a sum of positive squares in 2 ways, for example, as 103571329 + 436642816 = 10177^2 + 20896^2 .

It is a cyclic number.

It is not a de Polignac number, because 540214145 - 2¹² = 540210049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54021410 + ... + 54021419.

It is an arithmetic number, because the mean of its divisors is an integer number (162064245).

Almost surely, 2^540214145 is an apocalyptic number.

It is an amenable number.

540214145 is a deficient number, since it is larger than the sum of its proper divisors (108042835).

540214145 is a wasteful number, since it uses less digits than its factorization.

540214145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108042834.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 540214145 is about 23242.5072872958. The cubic root of 540214145 is about 814.4329150042.

The spelling of 540214145 in words is "five hundred forty million, two hundred fourteen thousand, one hundred forty-five".