261713134 has 8 divisors (see below), whose sum is σ = 393276168. Its totient is φ = 130621080.

The previous prime is 261713131. The next prime is 261713161. The reversal of 261713134 is 431317162.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261713131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116352 + ... + 118579.

It is an arithmetic number, because the mean of its divisors is an integer number (49159521).

Almost surely, 2^261713134 is an apocalyptic number.

261713134 is a deficient number, since it is larger than the sum of its proper divisors (131563034).

261713134 is a wasteful number, since it uses less digits than its factorization.

261713134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235490.

The product of its digits is 3024, while the sum is 28.

The square root of 261713134 is about 16177.5503089930. The cubic root of 261713134 is about 639.6491680694.

It can be divided in two parts, 2617 and 13134, that added together give a palindrome (15751).

The spelling of 261713134 in words is "two hundred sixty-one million, seven hundred thirteen thousand, one hundred thirty-four".