1147432073 has 8 divisors (see below), whose sum is σ = 1205937600. Its totient is φ = 1089644688.

The previous prime is 1147432057. The next prime is 1147432087. The reversal of 1147432073 is 3702347411.

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

It is not a de Polignac number, because 1147432073 - 2⁴ = 1147432057 is a prime.

It is a super-4 number, since 4×1147432073⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1147432003) 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, 176258 + ... + 182651.

It is an arithmetic number, because the mean of its divisors is an integer number (150742200).

Almost surely, 2^1147432073 is an apocalyptic number.

It is an amenable number.

1147432073 is a deficient number, since it is larger than the sum of its proper divisors (58505527).

1147432073 is a wasteful number, since it uses less digits than its factorization.

1147432073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359071.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 1147432073 is about 33873.7667376984. The cubic root of 1147432073 is about 1046.9091487344.

Adding to 1147432073 its reverse (3702347411), we get a palindrome (4849779484).

The spelling of 1147432073 in words is "one billion, one hundred forty-seven million, four hundred thirty-two thousand, seventy-three".