261669094 has 8 divisors (see below), whose sum is σ = 395500248. Its totient is φ = 129835680.

The previous prime is 261669073. The next prime is 261669101. The reversal of 261669094 is 490966162.

It is a happy number.

261669094 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 261669094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499107 + ... + 499630.

It is an arithmetic number, because the mean of its divisors is an integer number (49437531).

Almost surely, 2^261669094 is an apocalyptic number.

261669094 is a deficient number, since it is larger than the sum of its proper divisors (133831154).

261669094 is a wasteful number, since it uses less digits than its factorization.

261669094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998870.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 261669094 is about 16176.1891062141. The cubic root of 261669094 is about 639.6132868876.

The spelling of 261669094 in words is "two hundred sixty-one million, six hundred sixty-nine thousand, ninety-four".