240252401 has 2 divisors, whose sum is σ = 240252402. Its totient is φ = 240252400.

The previous prime is 240252371. The next prime is 240252403. The reversal of 240252401 is 104252042.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240250000 + 2401 = 15500^2 + 49^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240252401 is a prime.

Together with 240252403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240252403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120126200 + 120126201.

It is an arithmetic number, because the mean of its divisors is an integer number (120126201).

Almost surely, 2^240252401 is an apocalyptic number.

It is an amenable number.

240252401 is a deficient number, since it is larger than the sum of its proper divisors (1).

240252401 is an equidigital number, since it uses as much as digits as its factorization.

240252401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 240252401 is about 15500.0774514194. The cubic root of 240252401 is about 621.6642772523.

It can be divided in two parts, 24025 and 2401, that multiplied together give a square (57684025 = 7595²).

The spelling of 240252401 in words is "two hundred forty million, two hundred fifty-two thousand, four hundred one".