40107451 has 2 divisors, whose sum is σ = 40107452. Its totient is φ = 40107450.

The previous prime is 40107449. The next prime is 40107503. The reversal of 40107451 is 15470104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40107451 - 2¹ = 40107449 is a prime.

Together with 40107449, 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 (40107751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20053725 + 20053726.

It is an arithmetic number, because the mean of its divisors is an integer number (20053726).

Almost surely, 2^40107451 is an apocalyptic number.

40107451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40107451 is an equidigital number, since it uses as much as digits as its factorization.

40107451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 40107451 is about 6333.0443706009. The cubic root of 40107451 is about 342.3011465793.

Adding to 40107451 its reverse (15470104), we get a palindrome (55577555).

The spelling of 40107451 in words is "forty million, one hundred seven thousand, four hundred fifty-one".