456143381 has 2 divisors, whose sum is σ = 456143382. Its totient is φ = 456143380.

The previous prime is 456143353. The next prime is 456143399. The reversal of 456143381 is 183341654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 452242756 + 3900625 = 21266^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 456143381 - 2²⁶ = 389034517 is a prime.

It is a super-2 number, since 2×456143381² = 416133568060222322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456143321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228071690 + 228071691.

It is an arithmetic number, because the mean of its divisors is an integer number (228071691).

Almost surely, 2^456143381 is an apocalyptic number.

It is an amenable number.

456143381 is a deficient number, since it is larger than the sum of its proper divisors (1).

456143381 is an equidigital number, since it uses as much as digits as its factorization.

456143381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 456143381 is about 21357.5134554564. The cubic root of 456143381 is about 769.7808905998.

The spelling of 456143381 in words is "four hundred fifty-six million, one hundred forty-three thousand, three hundred eighty-one".