1261126968 has 16 divisors (see below), whose sum is σ = 3152817480. Its totient is φ = 420375648.

The previous prime is 1261126949. The next prime is 1261126987. The reversal of 1261126968 is 8696211621.

It is an interprime number because it is at equal distance from previous prime (1261126949) and next prime (1261126987).

It is a super-3 number, since 3×1261126968³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26273455 + ... + 26273502.

Almost surely, 2^1261126968 is an apocalyptic number.

It is an amenable number.

1261126968 is an abundant number, since it is smaller than the sum of its proper divisors (1891690512).

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

1261126968 is a wasteful number, since it uses less digits than its factorization.

1261126968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52546966 (or 52546962 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 1261126968 is about 35512.3495139367. The cubic root of 1261126968 is about 1080.4042176909.

The spelling of 1261126968 in words is "one billion, two hundred sixty-one million, one hundred twenty-six thousand, nine hundred sixty-eight".