451131413 has 2 divisors, whose sum is σ = 451131414. Its totient is φ = 451131412.

The previous prime is 451131409. The next prime is 451131419. The reversal of 451131413 is 314131154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246584209 + 204547204 = 15703^2 + 14302^2 .

It is a cyclic number.

It is not a de Polignac number, because 451131413 - 2² = 451131409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451131419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225565706 + 225565707.

It is an arithmetic number, because the mean of its divisors is an integer number (225565707).

Almost surely, 2^451131413 is an apocalyptic number.

It is an amenable number.

451131413 is a deficient number, since it is larger than the sum of its proper divisors (1).

451131413 is an equidigital number, since it uses as much as digits as its factorization.

451131413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 451131413 is about 21239.8543544912. The cubic root of 451131413 is about 766.9511263477.

Adding to 451131413 its reverse (314131154), we get a palindrome (765262567).

The spelling of 451131413 in words is "four hundred fifty-one million, one hundred thirty-one thousand, four hundred thirteen".