140263451 has 2 divisors, whose sum is σ = 140263452. Its totient is φ = 140263450.

The previous prime is 140263439. The next prime is 140263469. The reversal of 140263451 is 154362041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140263451 - 2²² = 136069147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140263451.

It is not a weakly prime, because it can be changed into another prime (140263421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70131725 + 70131726.

It is an arithmetic number, because the mean of its divisors is an integer number (70131726).

Almost surely, 2^140263451 is an apocalyptic number.

140263451 is a deficient number, since it is larger than the sum of its proper divisors (1).

140263451 is an equidigital number, since it uses as much as digits as its factorization.

140263451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 140263451 is about 11843.2871703763. The cubic root of 140263451 is about 519.5749127047.

The spelling of 140263451 in words is "one hundred forty million, two hundred sixty-three thousand, four hundred fifty-one".