1634970481 has 2 divisors, whose sum is σ = 1634970482. Its totient is φ = 1634970480.

The previous prime is 1634970457. The next prime is 1634970487. The reversal of 1634970481 is 1840794361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1502260081 + 132710400 = 38759^2 + 11520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634970481 - 2⁷ = 1634970353 is a prime.

It is a super-2 number, since 2×1634970481² = 5346256947482742722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1634970487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817485240 + 817485241.

It is an arithmetic number, because the mean of its divisors is an integer number (817485241).

Almost surely, 2^1634970481 is an apocalyptic number.

It is an amenable number.

1634970481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634970481 is an equidigital number, since it uses as much as digits as its factorization.

1634970481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1634970481 is about 40434.7682199367. The cubic root of 1634970481 is about 1178.0669492381.

The spelling of 1634970481 in words is "one billion, six hundred thirty-four million, nine hundred seventy thousand, four hundred eighty-one".