540900149 has 2 divisors, whose sum is σ = 540900150. Its totient is φ = 540900148.

The previous prime is 540900137. The next prime is 540900161. The reversal of 540900149 is 941009045.

It is a balanced prime because it is at equal distance from previous prime (540900137) and next prime (540900161).

It can be written as a sum of positive squares in only one way, i.e., 540888049 + 12100 = 23257^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 540900149 - 2⁴ = 540900133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540900049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270450074 + 270450075.

It is an arithmetic number, because the mean of its divisors is an integer number (270450075).

Almost surely, 2^540900149 is an apocalyptic number.

It is an amenable number.

540900149 is a deficient number, since it is larger than the sum of its proper divisors (1).

540900149 is an equidigital number, since it uses as much as digits as its factorization.

540900149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 540900149 is about 23257.2601352782. The cubic root of 540900149 is about 814.7775116268. Note that the first 3 decimals are identical.

The spelling of 540900149 in words is "five hundred forty million, nine hundred thousand, one hundred forty-nine".