981258131 has 32 divisors (see below), whose sum is σ = 1194393600. Its totient is φ = 788055840.

The previous prime is 981258077. The next prime is 981258133. The reversal of 981258131 is 131852189.

It is a cyclic number.

It is not a de Polignac number, because 981258131 - 2⁶ = 981258067 is a prime.

It is a super-2 number, since 2×981258131² = 1925735039307226322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981258133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2276486 + ... + 2276916.

It is an arithmetic number, because the mean of its divisors is an integer number (37324800).

Almost surely, 2^981258131 is an apocalyptic number.

981258131 is a deficient number, since it is larger than the sum of its proper divisors (213135469).

981258131 is a wasteful number, since it uses less digits than its factorization.

981258131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719.

The product of its digits is 17280, while the sum is 38.

The square root of 981258131 is about 31325.0399999745. The cubic root of 981258131 is about 993.7132701850.

The spelling of 981258131 in words is "nine hundred eighty-one million, two hundred fifty-eight thousand, one hundred thirty-one".