1147423953 has 16 divisors (see below), whose sum is σ = 1652192640. Its totient is φ = 704131584.

The previous prime is 1147423919. The next prime is 1147423957. The reversal of 1147423953 is 3593247411.

It is not a de Polignac number, because 1147423953 - 2¹⁰ = 1147422929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1147423957) 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, 26976 + ... + 54977.

It is an arithmetic number, because the mean of its divisors is an integer number (103262040).

Almost surely, 2^1147423953 is an apocalyptic number.

1147423953 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1147423953 is a deficient number, since it is larger than the sum of its proper divisors (504768687).

1147423953 is a wasteful number, since it uses less digits than its factorization.

1147423953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82328.

The product of its digits is 90720, while the sum is 39.

The square root of 1147423953 is about 33873.6468807243. The cubic root of 1147423953 is about 1046.9066791845.

The spelling of 1147423953 in words is "one billion, one hundred forty-seven million, four hundred twenty-three thousand, nine hundred fifty-three".