814900261 has 16 divisors (see below), whose sum is σ = 967075200. Its totient is φ = 671848128.

The previous prime is 814900243. The next prime is 814900279. The reversal of 814900261 is 162009418.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (814900243) and next prime (814900279).

It is not a de Polignac number, because 814900261 - 2⁹ = 814899749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814900211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47146 + ... + 62068.

It is an arithmetic number, because the mean of its divisors is an integer number (60442200).

Almost surely, 2^814900261 is an apocalyptic number.

It is an amenable number.

814900261 is a deficient number, since it is larger than the sum of its proper divisors (152174939).

814900261 is a wasteful number, since it uses less digits than its factorization.

814900261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15228.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 814900261 is about 28546.4579413979. The cubic root of 814900261 is about 934.0457577461.

Adding to 814900261 its reverse (162009418), we get a palindrome (976909679).

The spelling of 814900261 in words is "eight hundred fourteen million, nine hundred thousand, two hundred sixty-one".