1161251 has 12 divisors (see below), whose sum is σ = 1455552. Its totient is φ = 918288.

The previous prime is 1161241. The next prime is 1161263. The reversal of 1161251 is 1521611.

It is not a de Polignac number, because 1161251 - 2¹⁰ = 1160227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (121296).

2^1161251 is an apocalyptic number.

1161251 is a deficient number, since it is larger than the sum of its proper divisors (294301).

1161251 is a wasteful number, since it uses less digits than its factorization.

1161251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850 (or 1843 counting only the distinct ones).

The product of its digits is 60, while the sum is 17.

The square root of 1161251 is about 1077.6135671009. The cubic root of 1161251 is about 105.1095153650.

Adding to 1161251 its reverse (1521611), we get a palindrome (2682862).

The spelling of 1161251 in words is "one million, one hundred sixty-one thousand, two hundred fifty-one".