261432214 has 16 divisors (see below), whose sum is σ = 415910880. Its totient is φ = 122981760.

The previous prime is 261432211. The next prime is 261432247. The reversal of 261432214 is 412234162.

It is a happy number.

261432214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261432211) 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, 43779 + ... + 49390.

It is an arithmetic number, because the mean of its divisors is an integer number (25994430).

Almost surely, 2^261432214 is an apocalyptic number.

261432214 is a deficient number, since it is larger than the sum of its proper divisors (154478666).

261432214 is a wasteful number, since it uses less digits than its factorization.

261432214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93255.

The product of its digits is 2304, while the sum is 25.

The square root of 261432214 is about 16168.8655755436. The cubic root of 261432214 is about 639.4202220062.

Adding to 261432214 its reverse (412234162), we get a palindrome (673666376).

The spelling of 261432214 in words is "two hundred sixty-one million, four hundred thirty-two thousand, two hundred fourteen".