1157251 has 2 divisors, whose sum is σ = 1157252. Its totient is φ = 1157250.

The previous prime is 1157243. The next prime is 1157257. The reversal of 1157251 is 1527511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157251 - 2³ = 1157243 is a prime.

1157251 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1157257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578625 + 578626.

It is an arithmetic number, because the mean of its divisors is an integer number (578626).

2^1157251 is an apocalyptic number.

1157251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157251 is an equidigital number, since it uses as much as digits as its factorization.

1157251 is an evil number, because the sum of its binary digits is even.

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

The square root of 1157251 is about 1075.7560132298. The cubic root of 1157251 is about 104.9886911479.

The spelling of 1157251 in words is "one million, one hundred fifty-seven thousand, two hundred fifty-one".