261310034 has 24 divisors (see below), whose sum is σ = 403236372. Its totient is φ = 126996480.

The previous prime is 261310003. The next prime is 261310037. The reversal of 261310034 is 430013162.

261310034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 187607809 + 73702225 = 13697^2 + 8585^2 .

It is a junction number, because it is equal to n+sod(n) for n = 261309988 and 261310015.

It is not an unprimeable number, because it can be changed into a prime (261310037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1084154 + ... + 1084394.

Almost surely, 2^261310034 is an apocalyptic number.

261310034 is a deficient number, since it is larger than the sum of its proper divisors (141926338).

261310034 is a wasteful number, since it uses less digits than its factorization.

261310034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 261310034 is about 16165.0868850124. The cubic root of 261310034 is about 639.3205957524.

Adding to 261310034 its reverse (430013162), we get a palindrome (691323196).

The spelling of 261310034 in words is "two hundred sixty-one million, three hundred ten thousand, thirty-four".