261174253 has 8 divisors (see below), whose sum is σ = 267049728. Its totient is φ = 255312144.

The previous prime is 261174239. The next prime is 261174257. The reversal of 261174253 is 352471162.

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 261174253 - 2⁹ = 261173741 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 (261174257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43375 + ... + 49027.

It is an arithmetic number, because the mean of its divisors is an integer number (33381216).

Almost surely, 2^261174253 is an apocalyptic number.

It is an amenable number.

261174253 is a deficient number, since it is larger than the sum of its proper divisors (5875475).

261174253 is an equidigital number, since it uses as much as digits as its factorization.

261174253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6683.

The product of its digits is 10080, while the sum is 31.

The square root of 261174253 is about 16160.8865165250. The cubic root of 261174253 is about 639.2098427280.

The spelling of 261174253 in words is "two hundred sixty-one million, one hundred seventy-four thousand, two hundred fifty-three".