1051261 has 4 divisors (see below), whose sum is σ = 1096992. Its totient is φ = 1005532.

The previous prime is 1051247. The next prime is 1051277. The reversal of 1051261 is 1621501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1621501 = 7 ⋅231643.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051261 is a prime.

It is a super-2 number, since 2×1051261² = 2210299380242, which contains 22 as substring.

It is a Duffinian number.

1051261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22831 + ... + 22876.

It is an arithmetic number, because the mean of its divisors is an integer number (274248).

2^1051261 is an apocalyptic number.

It is an amenable number.

1051261 is a deficient number, since it is larger than the sum of its proper divisors (45731).

1051261 is an equidigital number, since it uses as much as digits as its factorization.

1051261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45730.

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

The square root of 1051261 is about 1025.3101969648. The cubic root of 1051261 is about 101.6803075250.

Adding to 1051261 its reverse (1621501), we get a palindrome (2672762).

The spelling of 1051261 in words is "one million, fifty-one thousand, two hundred sixty-one".