981483631 has 2 divisors, whose sum is σ = 981483632. Its totient is φ = 981483630.

The previous prime is 981483583. The next prime is 981483641. The reversal of 981483631 is 136384189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 981483631 - 2⁹ = 981483119 is a prime.

It is a super-2 number, since 2×981483631² = 1926620235841888322, which contains 22 as substring.

It is equal to p_49953265 and since 981483631 and 49953265 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981483641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490741815 + 490741816.

It is an arithmetic number, because the mean of its divisors is an integer number (490741816).

Almost surely, 2^981483631 is an apocalyptic number.

981483631 is a deficient number, since it is larger than the sum of its proper divisors (1).

981483631 is an equidigital number, since it uses as much as digits as its factorization.

981483631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 981483631 is about 31328.6391501450. The cubic root of 981483631 is about 993.7893851141.

The spelling of 981483631 in words is "nine hundred eighty-one million, four hundred eighty-three thousand, six hundred thirty-one".