1120129449 has 8 divisors (see below), whose sum is σ = 1499018112. Its totient is φ = 743996880.

The previous prime is 1120129433. The next prime is 1120129481. The reversal of 1120129449 is 9449210211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1120129449 - 2⁴ = 1120129433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1120129649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688074 + ... + 689699.

It is an arithmetic number, because the mean of its divisors is an integer number (187377264).

Almost surely, 2^1120129449 is an apocalyptic number.

It is an amenable number.

1120129449 is a deficient number, since it is larger than the sum of its proper divisors (378888663).

1120129449 is a wasteful number, since it uses less digits than its factorization.

1120129449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378047.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1120129449 is about 33468.3350198363. The cubic root of 1120129449 is about 1038.5388285413.

The spelling of 1120129449 in words is "one billion, one hundred twenty million, one hundred twenty-nine thousand, four hundred forty-nine".