421150481 has 2 divisors, whose sum is σ = 421150482. Its totient is φ = 421150480.

The previous prime is 421150427. The next prime is 421150517. The reversal of 421150481 is 184051124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300502225 + 120648256 = 17335^2 + 10984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421150481 is a prime.

It is a super-2 number, since 2×421150481² = 354735455293062722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421150481.

It is not a weakly prime, because it can be changed into another prime (421150421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210575240 + 210575241.

It is an arithmetic number, because the mean of its divisors is an integer number (210575241).

Almost surely, 2^421150481 is an apocalyptic number.

It is an amenable number.

421150481 is a deficient number, since it is larger than the sum of its proper divisors (1).

421150481 is an equidigital number, since it uses as much as digits as its factorization.

421150481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 421150481 is about 20521.9511986556. The cubic root of 421150481 is about 749.5704093903.

The spelling of 421150481 in words is "four hundred twenty-one million, one hundred fifty thousand, four hundred eighty-one".