147403091 has 4 divisors (see below), whose sum is σ = 160803384. Its totient is φ = 134002800.

The previous prime is 147403049. The next prime is 147403111. The reversal of 147403091 is 190304741.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147403091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147403001) 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, 6700130 + ... + 6700151.

It is an arithmetic number, because the mean of its divisors is an integer number (40200846).

Almost surely, 2^147403091 is an apocalyptic number.

147403091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

147403091 is a deficient number, since it is larger than the sum of its proper divisors (13400293).

147403091 is a wasteful number, since it uses less digits than its factorization.

147403091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400292.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 147403091 is about 12140.9674655688. The cubic root of 147403091 is about 528.2451644499.

The spelling of 147403091 in words is "one hundred forty-seven million, four hundred three thousand, ninety-one".