147291983 has 2 divisors, whose sum is σ = 147291984. Its totient is φ = 147291982.

The previous prime is 147291959. The next prime is 147292001. The reversal of 147291983 is 389192741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147291983 - 2¹² = 147287887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147291923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73645991 + 73645992.

It is an arithmetic number, because the mean of its divisors is an integer number (73645992).

Almost surely, 2^147291983 is an apocalyptic number.

147291983 is a deficient number, since it is larger than the sum of its proper divisors (1).

147291983 is an equidigital number, since it uses as much as digits as its factorization.

147291983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 147291983 is about 12136.3908556045. The cubic root of 147291983 is about 528.1124060020.

The spelling of 147291983 in words is "one hundred forty-seven million, two hundred ninety-one thousand, nine hundred eighty-three".