147601121 has 4 divisors (see below), whose sum is σ = 147639492. Its totient is φ = 147562752.

The previous prime is 147601093. The next prime is 147601127. The reversal of 147601121 is 121106741.

It is a happy number.

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 40768225 + 106832896 = 6385^2 + 10336^2 .

It is a cyclic number.

It is not a de Polignac number, because 147601121 - 2²⁶ = 80492257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147601127) 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, 12680 + ... + 21353.

It is an arithmetic number, because the mean of its divisors is an integer number (36909873).

Almost surely, 2^147601121 is an apocalyptic number.

It is an amenable number.

147601121 is a deficient number, since it is larger than the sum of its proper divisors (38371).

147601121 is an equidigital number, since it uses as much as digits as its factorization.

147601121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38370.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 147601121 is about 12149.1201739056. The cubic root of 147601121 is about 528.4816171557.

Adding to 147601121 its reverse (121106741), we get a palindrome (268707862).

The spelling of 147601121 in words is "one hundred forty-seven million, six hundred one thousand, one hundred twenty-one".