1051257 has 8 divisors (see below), whose sum is σ = 1412320. Its totient is φ = 695520.

The previous prime is 1051247. The next prime is 1051277. The reversal of 1051257 is 7521501.

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

It is not a de Polignac number, because 1051257 - 2¹⁰ = 1050233 is a prime.

It is a super-2 number, since 2×1051257² = 2210282560098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051247) 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, 844 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (176540).

2^1051257 is an apocalyptic number.

It is an amenable number.

1051257 is a deficient number, since it is larger than the sum of its proper divisors (361063).

1051257 is a wasteful number, since it uses less digits than its factorization.

1051257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663.

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

The square root of 1051257 is about 1025.3082463338. The cubic root of 1051257 is about 101.6801785619.

Adding to 1051257 its reverse (7521501), we get a palindrome (8572758).

The spelling of 1051257 in words is "one million, fifty-one thousand, two hundred fifty-seven".