261132674 has 8 divisors (see below), whose sum is σ = 427308048. Its totient is φ = 118696660.

The previous prime is 261132661. The next prime is 261132689. The reversal of 261132674 is 476231162.

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 261132674.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5934812 + ... + 5934855.

It is an arithmetic number, because the mean of its divisors is an integer number (53413506).

Almost surely, 2^261132674 is an apocalyptic number.

261132674 is a deficient number, since it is larger than the sum of its proper divisors (166175374).

261132674 is a wasteful number, since it uses less digits than its factorization.

261132674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11869680.

The product of its digits is 12096, while the sum is 32.

The square root of 261132674 is about 16159.6000569321. The cubic root of 261132674 is about 639.1759201441.

The spelling of 261132674 in words is "two hundred sixty-one million, one hundred thirty-two thousand, six hundred seventy-four".