240142451 has 2 divisors, whose sum is σ = 240142452. Its totient is φ = 240142450.

The previous prime is 240142439. The next prime is 240142457. The reversal of 240142451 is 154241042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240142451 - 2¹⁰ = 240141427 is a prime.

It is not a weakly prime, because it can be changed into another prime (240142457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120071225 + 120071226.

It is an arithmetic number, because the mean of its divisors is an integer number (120071226).

Almost surely, 2^240142451 is an apocalyptic number.

240142451 is a deficient number, since it is larger than the sum of its proper divisors (1).

240142451 is an equidigital number, since it uses as much as digits as its factorization.

240142451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 240142451 is about 15496.5302890679. The cubic root of 240142451 is about 621.5694292000.

Adding to 240142451 its reverse (154241042), we get a palindrome (394383493).

The spelling of 240142451 in words is "two hundred forty million, one hundred forty-two thousand, four hundred fifty-one".