140104451 has 2 divisors, whose sum is σ = 140104452. Its totient is φ = 140104450.

The previous prime is 140104441. The next prime is 140104457. The reversal of 140104451 is 154401041.

It is a strong prime.

It is an emirp because it is prime and its reverse (154401041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140104451 is a prime.

It is a super-2 number, since 2×140104451² = 39258514380022802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140104457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70052225 + 70052226.

It is an arithmetic number, because the mean of its divisors is an integer number (70052226).

Almost surely, 2^140104451 is an apocalyptic number.

140104451 is a deficient number, since it is larger than the sum of its proper divisors (1).

140104451 is an equidigital number, since it uses as much as digits as its factorization.

140104451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 140104451 is about 11836.5726035876. The cubic root of 140104451 is about 519.3785117032.

Adding to 140104451 its reverse (154401041), we get a palindrome (294505492).

The spelling of 140104451 in words is "one hundred forty million, one hundred four thousand, four hundred fifty-one".