147233121 has 16 divisors (see below), whose sum is σ = 224716800. Its totient is φ = 83997648.

The previous prime is 147233117. The next prime is 147233129. The reversal of 147233121 is 121332741.

It is a happy number.

It is not a de Polignac number, because 147233121 - 2² = 147233117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 147233091 and 147233100.

It is not an unprimeable number, because it can be changed into a prime (147233129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8520 + ... + 19158.

It is an arithmetic number, because the mean of its divisors is an integer number (14044800).

Almost surely, 2^147233121 is an apocalyptic number.

It is an amenable number.

147233121 is a deficient number, since it is larger than the sum of its proper divisors (77483679).

147233121 is a wasteful number, since it uses less digits than its factorization.

147233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11308.

The product of its digits is 1008, while the sum is 24.

The square root of 147233121 is about 12133.9655925011. The cubic root of 147233121 is about 528.0420471279.

Adding to 147233121 its reverse (121332741), we get a palindrome (268565862).

The spelling of 147233121 in words is "one hundred forty-seven million, two hundred thirty-three thousand, one hundred twenty-one".