1147309431 has 8 divisors (see below), whose sum is σ = 1571090544. Its totient is φ = 744200640.

The previous prime is 1147309417. The next prime is 1147309441. The reversal of 1147309431 is 1349037411.

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

It is not a de Polignac number, because 1147309431 - 2⁶ = 1147309367 is a prime.

It is a super-2 number, since 2×1147309431² = 2632637860923087522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1147309392 and 1147309401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147309441) 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, 5167950 + ... + 5168171.

It is an arithmetic number, because the mean of its divisors is an integer number (196386318).

Almost surely, 2^1147309431 is an apocalyptic number.

1147309431 is a deficient number, since it is larger than the sum of its proper divisors (423781113).

1147309431 is a wasteful number, since it uses less digits than its factorization.

1147309431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10336161.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1147309431 is about 33871.9564093957. The cubic root of 1147309431 is about 1046.8718481658.

The spelling of 1147309431 in words is "one billion, one hundred forty-seven million, three hundred nine thousand, four hundred thirty-one".