261051412 has 12 divisors (see below), whose sum is σ = 480884320. Its totient is φ = 123655896.

The previous prime is 261051407. The next prime is 261051419. The reversal of 261051412 is 214150162.

261051412 is digitally balanced in base 2 and base 3, because in such bases 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 (261051419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1717368 + ... + 1717519.

Almost surely, 2^261051412 is an apocalyptic number.

It is an amenable number.

261051412 is a deficient number, since it is larger than the sum of its proper divisors (219832908).

261051412 is a wasteful number, since it uses less digits than its factorization.

261051412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434910 (or 3434908 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 261051412 is about 16157.0855045085. The cubic root of 261051412 is about 639.1096114467.

The spelling of 261051412 in words is "two hundred sixty-one million, fifty-one thousand, four hundred twelve".