194261465 has 12 divisors (see below), whose sum is σ = 247634796. Its totient is φ = 146266368.

The previous prime is 194261449. The next prime is 194261471. The reversal of 194261465 is 564162491.

194261465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 19678096 + 174583369 = 4436^2 + 13213^2 .

It is not a de Polignac number, because 194261465 - 2⁴ = 194261449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65774 + ... + 68663.

It is an arithmetic number, because the mean of its divisors is an integer number (20636233).

Almost surely, 2^194261465 is an apocalyptic number.

It is an amenable number.

194261465 is a deficient number, since it is larger than the sum of its proper divisors (53373331).

194261465 is a wasteful number, since it uses less digits than its factorization.

194261465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134476 (or 134459 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 194261465 is about 13937.7711632815. The cubic root of 194261465 is about 579.1559909930.

The spelling of 194261465 in words is "one hundred ninety-four million, two hundred sixty-one thousand, four hundred sixty-five".