1011261 has 8 divisors (see below), whose sum is σ = 1353024. Its totient is φ = 671840.

The previous prime is 1011239. The next prime is 1011271. The reversal of 1011261 is 1621101.

It is a happy number.

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 1011261 - 2⁵ = 1011229 is a prime.

1011261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011221) 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, 1240 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (169128).

2^1011261 is an apocalyptic number.

It is an amenable number.

1011261 is a deficient number, since it is larger than the sum of its proper divisors (341763).

1011261 is an equidigital number, since it uses as much as digits as its factorization.

1011261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1011261 is about 1005.6147373622. The cubic root of 1011261 is about 100.3739664146.

Adding to 1011261 its reverse (1621101), we get a palindrome (2632362).

The spelling of 1011261 in words is "one million, eleven thousand, two hundred sixty-one".