1147472023 has 4 divisors (see below), whose sum is σ = 1154780920. Its totient is φ = 1140163128.

The previous prime is 1147472017. The next prime is 1147472057. The reversal of 1147472023 is 3202747411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1147472023 - 2⁵ = 1147471991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147472063) 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, 3654213 + ... + 3654526.

It is an arithmetic number, because the mean of its divisors is an integer number (288695230).

Almost surely, 2^1147472023 is an apocalyptic number.

1147472023 is a deficient number, since it is larger than the sum of its proper divisors (7308897).

1147472023 is an equidigital number, since it uses as much as digits as its factorization.

1147472023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308896.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 1147472023 is about 33874.3564219307. The cubic root of 1147472023 is about 1046.9212986287.

The spelling of 1147472023 in words is "one billion, one hundred forty-seven million, four hundred seventy-two thousand, twenty-three".