146147121 has 6 divisors (see below), whose sum is σ = 211101410. Its totient is φ = 97431408.

The previous prime is 146147117. The next prime is 146147123. The reversal of 146147121 is 121741641.

It can be written as a sum of positive squares in only one way, i.e., 104040000 + 42107121 = 10200^2 + 6489^2 .

It is not a de Polignac number, because 146147121 - 2² = 146147117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146147123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8119276 + ... + 8119293.

Almost surely, 2^146147121 is an apocalyptic number.

It is an amenable number.

146147121 is a deficient number, since it is larger than the sum of its proper divisors (64954289).

146147121 is a wasteful number, since it uses less digits than its factorization.

146147121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16238575 (or 16238572 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 146147121 is about 12089.1323510002. The cubic root of 146147121 is about 526.7405523556.

Adding to 146147121 its reverse (121741641), we get a palindrome (267888762).

The spelling of 146147121 in words is "one hundred forty-six million, one hundred forty-seven thousand, one hundred twenty-one".