1057251 has 8 divisors (see below), whose sum is σ = 1518160. Its totient is φ = 650592.

The previous prime is 1057249. The next prime is 1057271. The reversal of 1057251 is 1527501.

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

It is not a de Polignac number, because 1057251 - 2¹ = 1057249 is a prime.

It is a super-2 number, since 2×1057251² = 2235559354002, which contains 22 as substring.

It is a Duffinian number.

1057251 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1057271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13516 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (189770).

2^1057251 is an apocalyptic number.

1057251 is a deficient number, since it is larger than the sum of its proper divisors (460909).

1057251 is a wasteful number, since it uses less digits than its factorization.

1057251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27125.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 1057251 is about 1028.2271149897. The cubic root of 1057251 is about 101.8730639350.

The spelling of 1057251 in words is "one million, fifty-seven thousand, two hundred fifty-one".