451022641 has 2 divisors, whose sum is σ = 451022642. Its totient is φ = 451022640.

The previous prime is 451022623. The next prime is 451022659. The reversal of 451022641 is 146220154.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (451022623) and next prime (451022659).

It can be written as a sum of positive squares in only one way, i.e., 246647025 + 204375616 = 15705^2 + 14296^2 .

It is a cyclic number.

It is not a de Polignac number, because 451022641 - 2¹³ = 451014449 is a prime.

It is a super-2 number, since 2×451022641² = 406842845389229762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (451022041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225511320 + 225511321.

It is an arithmetic number, because the mean of its divisors is an integer number (225511321).

Almost surely, 2^451022641 is an apocalyptic number.

It is an amenable number.

451022641 is a deficient number, since it is larger than the sum of its proper divisors (1).

451022641 is an equidigital number, since it uses as much as digits as its factorization.

451022641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 451022641 is about 21237.2936364312. The cubic root of 451022641 is about 766.8894816982.

Adding to 451022641 its reverse (146220154), we get a palindrome (597242795).

The spelling of 451022641 in words is "four hundred fifty-one million, twenty-two thousand, six hundred forty-one".