981106351 has 2 divisors, whose sum is σ = 981106352. Its totient is φ = 981106350.

The previous prime is 981106333. The next prime is 981106387. The reversal of 981106351 is 153601189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 981106351 - 2²⁵ = 947551919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981106391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490553175 + 490553176.

It is an arithmetic number, because the mean of its divisors is an integer number (490553176).

Almost surely, 2^981106351 is an apocalyptic number.

981106351 is a deficient number, since it is larger than the sum of its proper divisors (1).

981106351 is an equidigital number, since it uses as much as digits as its factorization.

981106351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 981106351 is about 31322.6172437745. The cubic root of 981106351 is about 993.6620320270.

The spelling of 981106351 in words is "nine hundred eighty-one million, one hundred six thousand, three hundred fifty-one".