981258130 has 48 divisors (see below), whose sum is σ = 1829043720. Its totient is φ = 379012608.

The previous prime is 981258077. The next prime is 981258133. The reversal of 981258130 is 31852189.

It can be written as a sum of positive squares in 12 ways, for example, as 392079601 + 589178529 = 19801^2 + 24273^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 981258130.

It is a congruent number.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3134854 + ... + 3135166.

It is the magic constant of a 1252 × 1252 magic square.

Almost surely, 2^981258130 is an apocalyptic number.

981258130 is a deficient number, since it is larger than the sum of its proper divisors (847785590).

981258130 is a wasteful number, since it uses less digits than its factorization.

981258130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 981258130 is about 31325.0399840128. The cubic root of 981258130 is about 993.7132698474.

The spelling of 981258130 in words is "nine hundred eighty-one million, two hundred fifty-eight thousand, one hundred thirty".