1036634981 has 2 divisors, whose sum is σ = 1036634982. Its totient is φ = 1036634980.

The previous prime is 1036634969. The next prime is 1036634983. The reversal of 1036634981 is 1894366301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 610584100 + 426050881 = 24710^2 + 20641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1036634981 - 2⁶ = 1036634917 is a prime.

It is a super-2 number, since 2×1036634981² = 2149224167665740722, which contains 22 as substring.

Together with 1036634983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1036634983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 518317490 + 518317491.

It is an arithmetic number, because the mean of its divisors is an integer number (518317491).

Almost surely, 2^1036634981 is an apocalyptic number.

It is an amenable number.

1036634981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1036634981 is an equidigital number, since it uses as much as digits as its factorization.

1036634981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1036634981 is about 32196.8163177666. The cubic root of 1036634981 is about 1012.0654985936.

The spelling of 1036634981 in words is "one billion, thirty-six million, six hundred thirty-four thousand, nine hundred eighty-one".