261053146 has 8 divisors (see below), whose sum is σ = 391794624. Its totient is φ = 130454940.

The previous prime is 261053123. The next prime is 261053153. The reversal of 261053146 is 641350162.

261053146 is digitally balanced in base 3, 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31140 + ... + 38623.

It is an arithmetic number, because the mean of its divisors is an integer number (48974328).

Almost surely, 2^261053146 is an apocalyptic number.

261053146 is a deficient number, since it is larger than the sum of its proper divisors (130741478).

261053146 is a wasteful number, since it uses less digits than its factorization.

261053146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71636.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 261053146 is about 16157.1391650874. The cubic root of 261053146 is about 639.1110265110. Note that the first 3 decimals are identical.

The spelling of 261053146 in words is "two hundred sixty-one million, fifty-three thousand, one hundred forty-six".