1012981058 has 4 divisors (see below), whose sum is σ = 1519471590. Its totient is φ = 506490528.

The previous prime is 1012981051. The next prime is 1012981063. The reversal of 1012981058 is 8501892101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8501892101 = 17707 ⋅480143.

It can be written as a sum of positive squares in only one way, i.e., 1012703329 + 277729 = 31823^2 + 527^2 .

It is a super-2 number, since 2×1012981058² = 2052261247733598728, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1012981051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253245263 + ... + 253245266.

Almost surely, 2^1012981058 is an apocalyptic number.

1012981058 is a deficient number, since it is larger than the sum of its proper divisors (506490532).

1012981058 is an equidigital number, since it uses as much as digits as its factorization.

1012981058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506490531.

The product of its (nonzero) digits is 5760, while the sum is 35.

The square root of 1012981058 is about 31827.3633529389. The cubic root of 1012981058 is about 1004.3084301049.

The spelling of 1012981058 in words is "one billion, twelve million, nine hundred eighty-one thousand, fifty-eight".