261147342 has 32 divisors (see below), whose sum is σ = 536164992. Its totient is φ = 84750624.

The previous prime is 261147311. The next prime is 261147347. The reversal of 261147342 is 243741162.

261147342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261147347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88068 + ... + 90984.

It is an arithmetic number, because the mean of its divisors is an integer number (16755156).

Almost surely, 2^261147342 is an apocalyptic number.

261147342 is an abundant number, since it is smaller than the sum of its proper divisors (275017650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261147342 is a wasteful number, since it uses less digits than its factorization.

261147342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312.

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

The square root of 261147342 is about 16160.0538984250. The cubic root of 261147342 is about 639.1878875688.

The spelling of 261147342 in words is "two hundred sixty-one million, one hundred forty-seven thousand, three hundred forty-two".