240201251 has 2 divisors, whose sum is σ = 240201252. Its totient is φ = 240201250.

The previous prime is 240201239. The next prime is 240201257. The reversal of 240201251 is 152102042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240201251 - 2¹⁸ = 239939107 is a prime.

It is not a weakly prime, because it can be changed into another prime (240201257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120100625 + 120100626.

It is an arithmetic number, because the mean of its divisors is an integer number (120100626).

Almost surely, 2^240201251 is an apocalyptic number.

240201251 is a deficient number, since it is larger than the sum of its proper divisors (1).

240201251 is an equidigital number, since it uses as much as digits as its factorization.

240201251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 240201251 is about 15498.4273718336. The cubic root of 240201251 is about 621.6201564519.

Adding to 240201251 its reverse (152102042), we get a palindrome (392303293).

The spelling of 240201251 in words is "two hundred forty million, two hundred one thousand, two hundred fifty-one".