1013251 has 8 divisors (see below), whose sum is σ = 1129680. Its totient is φ = 903168.

The previous prime is 1013249. The next prime is 1013263. The reversal of 1013251 is 1523101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 11-Lehmer number, since φ(1013251) divides (1013251-1)¹¹.

It is a cyclic number.

It is not a de Polignac number, because 1013251 - 2¹ = 1013249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013291) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1246 + ... + 1891.

It is an arithmetic number, because the mean of its divisors is an integer number (141210).

2^1013251 is an apocalyptic number.

1013251 is a deficient number, since it is larger than the sum of its proper divisors (116429).

1013251 is a wasteful number, since it uses less digits than its factorization.

1013251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1013251 is about 1006.6036956022. The cubic root of 1013251 is about 100.4397632480.

Adding to 1013251 its reverse (1523101), we get a palindrome (2536352).

The spelling of 1013251 in words is "one million, thirteen thousand, two hundred fifty-one".