261741412 has 18 divisors (see below), whose sum is σ = 461796342. Its totient is φ = 129808224.

The previous prime is 261741409. The next prime is 261741421. The reversal of 261741412 is 214147162.

It can be written as a sum of positive squares in only one way, i.e., 224580196 + 37161216 = 14986^2 + 6096^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 62488 + ... + 66544.

Almost surely, 2^261741412 is an apocalyptic number.

It is an amenable number.

261741412 is a deficient number, since it is larger than the sum of its proper divisors (200054930).

261741412 is a wasteful number, since it uses less digits than its factorization.

261741412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4315 (or 4186 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 261741412 is about 16178.4242743229. The cubic root of 261741412 is about 639.6722051858.

Adding to 261741412 its reverse (214147162), we get a palindrome (475888574).

The spelling of 261741412 in words is "two hundred sixty-one million, seven hundred forty-one thousand, four hundred twelve".