240551947 has 2 divisors, whose sum is σ = 240551948. Its totient is φ = 240551946.

The previous prime is 240551939. The next prime is 240551953. The reversal of 240551947 is 749155042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240551947 - 2³ = 240551939 is a prime.

It is not a weakly prime, because it can be changed into another prime (240551957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120275973 + 120275974.

It is an arithmetic number, because the mean of its divisors is an integer number (120275974).

Almost surely, 2^240551947 is an apocalyptic number.

240551947 is a deficient number, since it is larger than the sum of its proper divisors (1).

240551947 is an equidigital number, since it uses as much as digits as its factorization.

240551947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 240551947 is about 15509.7371673410. The cubic root of 240551947 is about 621.9225330266.

The spelling of 240551947 in words is "two hundred forty million, five hundred fifty-one thousand, nine hundred forty-seven".