261432741 has 8 divisors (see below), whose sum is σ = 349272000. Its totient is φ = 173940992.

The previous prime is 261432719. The next prime is 261432781. The reversal of 261432741 is 147234162.

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

It is a cyclic number.

It is not a de Polignac number, because 261432741 - 2¹⁴ = 261416357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261432699 and 261432708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261432781) 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, 85116 + ... + 88133.

It is an arithmetic number, because the mean of its divisors is an integer number (43659000).

Almost surely, 2^261432741 is an apocalyptic number.

It is an amenable number.

261432741 is a deficient number, since it is larger than the sum of its proper divisors (87839259).

261432741 is a wasteful number, since it uses less digits than its factorization.

261432741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173755.

The product of its digits is 8064, while the sum is 30.

The square root of 261432741 is about 16168.8818722879. The cubic root of 261432741 is about 639.4206516577.

The spelling of 261432741 in words is "two hundred sixty-one million, four hundred thirty-two thousand, seven hundred forty-one".