147212799 has 4 divisors (see below), whose sum is σ = 196283736. Its totient is φ = 98141864.

The previous prime is 147212797. The next prime is 147212803. The reversal of 147212799 is 997212741.

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

It is a cyclic number.

It is not a de Polignac number, because 147212799 - 2¹ = 147212797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147212799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147212797) 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, 24535464 + ... + 24535469.

It is an arithmetic number, because the mean of its divisors is an integer number (49070934).

Almost surely, 2^147212799 is an apocalyptic number.

147212799 is a deficient number, since it is larger than the sum of its proper divisors (49070937).

147212799 is an equidigital number, since it uses as much as digits as its factorization.

147212799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49070936.

The product of its digits is 63504, while the sum is 42.

The square root of 147212799 is about 12133.1281621847. The cubic root of 147212799 is about 528.0177514980.

The spelling of 147212799 in words is "one hundred forty-seven million, two hundred twelve thousand, seven hundred ninety-nine".