1115251 has 8 divisors (see below), whose sum is σ = 1190160. Its totient is φ = 1045024.

The previous prime is 1115239. The next prime is 1115267. The reversal of 1115251 is 1525111.

It is not a de Polignac number, because 1115251 - 2¹⁹ = 590963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115351) 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, 4800 + ... + 5026.

It is an arithmetic number, because the mean of its divisors is an integer number (148770).

2^1115251 is an apocalyptic number.

1115251 is a deficient number, since it is larger than the sum of its proper divisors (74909).

1115251 is an frugal number, since it uses more digits than its factorization.

1115251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 244 counting only the distinct ones).

The product of its digits is 50, while the sum is 16.

The square root of 1115251 is about 1056.0544493538. The cubic root of 1115251 is about 103.7028934067.

It can be divided in two parts, 11 and 15251, that multiplied together give a palindrome (167761).

The spelling of 1115251 in words is "one million, one hundred fifteen thousand, two hundred fifty-one".