981126433 has 16 divisors (see below), whose sum is σ = 1198584576. Its totient is φ = 784776960.

The previous prime is 981126383. The next prime is 981126439. The reversal of 981126433 is 334621189.

It is a cyclic number.

It is not a de Polignac number, because 981126433 - 2⁹ = 981125921 is a prime.

It is a super-3 number, since 3×981126433³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 981126392 and 981126401.

It is not an unprimeable number, because it can be changed into a prime (981126439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67716 + ... + 80917.

It is an arithmetic number, because the mean of its divisors is an integer number (74911536).

Almost surely, 2^981126433 is an apocalyptic number.

It is an amenable number.

981126433 is a deficient number, since it is larger than the sum of its proper divisors (217458143).

981126433 is a wasteful number, since it uses less digits than its factorization.

981126433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148704.

The product of its digits is 31104, while the sum is 37.

The square root of 981126433 is about 31322.9378092158. The cubic root of 981126433 is about 993.6688116470.

The spelling of 981126433 in words is "nine hundred eighty-one million, one hundred twenty-six thousand, four hundred thirty-three".