240260291 has 2 divisors, whose sum is σ = 240260292. Its totient is φ = 240260290.

The previous prime is 240260281. The next prime is 240260297. The reversal of 240260291 is 192062042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240260291 - 2⁶ = 240260227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240260291.

It is not a weakly prime, because it can be changed into another prime (240260297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120130145 + 120130146.

It is an arithmetic number, because the mean of its divisors is an integer number (120130146).

Almost surely, 2^240260291 is an apocalyptic number.

240260291 is a deficient number, since it is larger than the sum of its proper divisors (1).

240260291 is an equidigital number, since it uses as much as digits as its factorization.

240260291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 240260291 is about 15500.3319641871. The cubic root of 240260291 is about 621.6710824253.

The spelling of 240260291 in words is "two hundred forty million, two hundred sixty thousand, two hundred ninety-one".