1013258 has 4 divisors (see below), whose sum is σ = 1519890. Its totient is φ = 506628.

The previous prime is 1013249. The next prime is 1013263. The reversal of 1013258 is 8523101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 644809 + 368449 = 803^2 + 607^2 .

It is a super-3 number, since 3×1013258³ = 3120910962333508536, which contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253313 + ... + 253316.

2^1013258 is an apocalyptic number.

1013258 is a deficient number, since it is larger than the sum of its proper divisors (506632).

1013258 is an equidigital number, since it uses as much as digits as its factorization.

1013258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506631.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1013258 is about 1006.6071726349. The cubic root of 1013258 is about 100.4399945420.

Adding to 1013258 its reverse (8523101), we get a palindrome (9536359).

The spelling of 1013258 in words is "one million, thirteen thousand, two hundred fifty-eight".