147031493 has 4 divisors (see below), whose sum is σ = 168036000. Its totient is φ = 126026988.

The previous prime is 147031373. The next prime is 147031501. The reversal of 147031493 is 394130741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147031493 - 2¹⁴ = 147015109 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 (147031693) 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, 10502243 + ... + 10502256.

It is an arithmetic number, because the mean of its divisors is an integer number (42009000).

Almost surely, 2^147031493 is an apocalyptic number.

It is an amenable number.

147031493 is a deficient number, since it is larger than the sum of its proper divisors (21004507).

147031493 is an equidigital number, since it uses as much as digits as its factorization.

147031493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21004506.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 147031493 is about 12125.6543328597. The cubic root of 147031493 is about 527.8008950941.

The spelling of 147031493 in words is "one hundred forty-seven million, thirty-one thousand, four hundred ninety-three".