1261467122 has 24 divisors (see below), whose sum is σ = 1985825964. Its totient is φ = 600551712.

The previous prime is 1261467121. The next prime is 1261467157. The reversal of 1261467122 is 2217641621.

It can be written as a sum of positive squares in 2 ways, for example, as 1199860321 + 61606801 = 34639^2 + 7849^2 .

It is not an unprimeable number, because it can be changed into a prime (1261467121) 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, 159608 + ... + 167324.

Almost surely, 2^1261467122 is an apocalyptic number.

1261467122 is a deficient number, since it is larger than the sum of its proper divisors (724358842).

1261467122 is an equidigital number, since it uses as much as digits as its factorization.

1261467122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7850 (or 7803 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 1261467122 is about 35517.1384263992. The cubic root of 1261467122 is about 1080.5013453102.

The spelling of 1261467122 in words is "one billion, two hundred sixty-one million, four hundred sixty-seven thousand, one hundred twenty-two".