1261353 has 8 divisors (see below), whose sum is σ = 1770400. Its totient is φ = 796608.

The previous prime is 1261333. The next prime is 1261357. The reversal of 1261353 is 3531621.

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

It is not a de Polignac number, because 1261353 - 2⁵ = 1261321 is a prime.

It is a super-2 number, since 2×1261353² = 3182022781218, which contains 22 as substring.

It is a Duffinian number.

1261353 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1261357) 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, 11008 + ... + 11121.

It is an arithmetic number, because the mean of its divisors is an integer number (221300).

2^1261353 is an apocalyptic number.

It is an amenable number.

1261353 is a deficient number, since it is larger than the sum of its proper divisors (509047).

1261353 is a wasteful number, since it uses less digits than its factorization.

1261353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22151.

The product of its digits is 540, while the sum is 21.

The square root of 1261353 is about 1123.0997284302. The cubic root of 1261353 is about 108.0468760845.

Adding to 1261353 its reverse (3531621), we get a palindrome (4792974).

The spelling of 1261353 in words is "one million, two hundred sixty-one thousand, three hundred fifty-three".