261314930 has 8 divisors (see below), whose sum is σ = 470366892. Its totient is φ = 104525968.

The previous prime is 261314929. The next prime is 261315031. The reversal of 261314930 is 39413162.

It can be written as a sum of positive squares in 2 ways, for example, as 261242569 + 72361 = 16163^2 + 269^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 261314893 and 261314902.

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, 13065737 + ... + 13065756.

Almost surely, 2^261314930 is an apocalyptic number.

261314930 is a deficient number, since it is larger than the sum of its proper divisors (209051962).

261314930 is a wasteful number, since it uses less digits than its factorization.

261314930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26131500.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 261314930 is about 16165.2383217817. The cubic root of 261314930 is about 639.3245885753.

The spelling of 261314930 in words is "two hundred sixty-one million, three hundred fourteen thousand, nine hundred thirty".