1150261 has 8 divisors (see below), whose sum is σ = 1333184. Its totient is φ = 972000.

The previous prime is 1150249. The next prime is 1150301. The reversal of 1150261 is 1620511.

It is a happy number.

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

It is a 5-Lehmer number, since φ(1150261) divides (1150261-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 1150261 - 2⁵ = 1150229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150211) 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, 615 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (166648).

2^1150261 is an apocalyptic number.

It is an amenable number.

1150261 is a deficient number, since it is larger than the sum of its proper divisors (182923).

1150261 is an equidigital number, since it uses as much as digits as its factorization.

1150261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1150261 is about 1072.5022144499. The cubic root of 1150261 is about 104.7768807168.

Adding to 1150261 its reverse (1620511), we get a palindrome (2770772).

The spelling of 1150261 in words is "one million, one hundred fifty thousand, two hundred sixty-one".