261050073 has 8 divisors (see below), whose sum is σ = 348249888. Its totient is φ = 173941824.

The previous prime is 261050057. The next prime is 261050077. The reversal of 261050073 is 370050162.

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

It is not a de Polignac number, because 261050073 - 2⁴ = 261050057 is a prime.

It is a super-2 number, since 2×261050073² = 136294281226610658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (261050077) 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, 15936 + ... + 27857.

It is an arithmetic number, because the mean of its divisors is an integer number (43531236).

Almost surely, 2^261050073 is an apocalyptic number.

It is an amenable number.

261050073 is a deficient number, since it is larger than the sum of its proper divisors (87199815).

261050073 is a wasteful number, since it uses less digits than its factorization.

261050073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45783.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 261050073 is about 16157.0440675267. The cubic root of 261050073 is about 639.1085187255.

The spelling of 261050073 in words is "two hundred sixty-one million, fifty thousand, seventy-three".