1149427923 has 8 divisors (see below), whose sum is σ = 1751509248. Its totient is φ = 656815944.

The previous prime is 1149427913. The next prime is 1149427927. The reversal of 1149427923 is 3297249411.

It is a happy number.

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

It is not a de Polignac number, because 1149427923 - 2¹⁶ = 1149362387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1149427927) 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, 27367311 + ... + 27367352.

It is an arithmetic number, because the mean of its divisors is an integer number (218938656).

Almost surely, 2^1149427923 is an apocalyptic number.

1149427923 is a deficient number, since it is larger than the sum of its proper divisors (602081325).

1149427923 is an equidigital number, since it uses as much as digits as its factorization.

1149427923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54734673.

The product of its digits is 108864, while the sum is 42.

The square root of 1149427923 is about 33903.2140511781. The cubic root of 1149427923 is about 1047.5157970820.

The spelling of 1149427923 in words is "one billion, one hundred forty-nine million, four hundred twenty-seven thousand, nine hundred twenty-three".