1149428733 has 4 divisors (see below), whose sum is σ = 1532571648. Its totient is φ = 766285820.

The previous prime is 1149428699. The next prime is 1149428771. The reversal of 1149428733 is 3378249411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1149428733 - 2¹² = 1149424637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149428773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191571453 + ... + 191571458.

It is an arithmetic number, because the mean of its divisors is an integer number (383142912).

Almost surely, 2^1149428733 is an apocalyptic number.

It is an amenable number.

1149428733 is a deficient number, since it is larger than the sum of its proper divisors (383142915).

1149428733 is an equidigital number, since it uses as much as digits as its factorization.

1149428733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383142914.

The product of its digits is 145152, while the sum is 42.

The square root of 1149428733 is about 33903.2259969461. The cubic root of 1149428733 is about 1047.5160431428.

The spelling of 1149428733 in words is "one billion, one hundred forty-nine million, four hundred twenty-eight thousand, seven hundred thirty-three".