1151257 has 8 divisors (see below), whose sum is σ = 1228392. Its totient is φ = 1075200.

The previous prime is 1151251. The next prime is 1151287. The reversal of 1151257 is 7521511.

1151257 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 549081 + 602176 = 741^2 + 776^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1151257 - 2¹¹ = 1149209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151251) 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, 3957 + ... + 4237.

It is an arithmetic number, because the mean of its divisors is an integer number (153549).

2^1151257 is an apocalyptic number.

1151257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1151257 is a deficient number, since it is larger than the sum of its proper divisors (77135).

1151257 is a wasteful number, since it uses less digits than its factorization.

1151257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its digits is 350, while the sum is 22.

The square root of 1151257 is about 1072.9664486833. The cubic root of 1151257 is about 104.8071137587.

Adding to 1151257 its reverse (7521511), we get a palindrome (8672768).

The spelling of 1151257 in words is "one million, one hundred fifty-one thousand, two hundred fifty-seven".