1261034316 has 18 divisors (see below), whose sum is σ = 3187614612. Its totient is φ = 420344760.

The previous prime is 1261034311. The next prime is 1261034321. The reversal of 1261034316 is 6134301621.

1261034316 is a `hidden beast` number, since 1 + 2 + 610 + 3 + 43 + 1 + 6 = 666.

1261034316 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1261034311) and next prime (1261034321).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1261034316² = 3180415092259175712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1261034316.

It is not an unprimeable number, because it can be changed into a prime (1261034311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17514330 + ... + 17514401.

Almost surely, 2^1261034316 is an apocalyptic number.

It is an amenable number.

1261034316 is an abundant number, since it is smaller than the sum of its proper divisors (1926580296).

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

1261034316 is a wasteful number, since it uses less digits than its factorization.

1261034316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35028741 (or 35028736 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1261034316 is about 35511.0449860322. The cubic root of 1261034316 is about 1080.3777587999.

Adding to 1261034316 its reverse (6134301621), we get a palindrome (7395335937).

The spelling of 1261034316 in words is "one billion, two hundred sixty-one million, thirty-four thousand, three hundred sixteen".