147212533 has 4 divisors (see below), whose sum is σ = 158536588. Its totient is φ = 135888480.

The previous prime is 147212531. The next prime is 147212539. The reversal of 147212533 is 335212741.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5673924 + 141538609 = 2382^2 + 11897^2 .

It is not a de Polignac number, because 147212533 - 2¹ = 147212531 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 (147212531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5662008 + ... + 5662033.

It is an arithmetic number, because the mean of its divisors is an integer number (39634147).

Almost surely, 2^147212533 is an apocalyptic number.

147212533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

147212533 is a deficient number, since it is larger than the sum of its proper divisors (11324055).

147212533 is a wasteful number, since it uses less digits than its factorization.

147212533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324054.

The product of its digits is 5040, while the sum is 28.

The square root of 147212533 is about 12133.1172004559. The cubic root of 147212533 is about 528.0174334713.

The spelling of 147212533 in words is "one hundred forty-seven million, two hundred twelve thousand, five hundred thirty-three".