145346121 has 12 divisors (see below), whose sum is σ = 210503280. Its totient is φ = 96639480.

The previous prime is 145346119. The next prime is 145346129. The reversal of 145346121 is 121643541.

It is a happy number.

145346121 is a `hidden beast` number, since 1 + 4 + 534 + 6 + 121 = 666.

It is not a de Polignac number, because 145346121 - 2¹ = 145346119 is a prime.

It is a super-2 number, since 2×145346121² = 42250989779493282, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145346129) 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 11 ways as a sum of consecutive naturals, for example, 17895 + ... + 24716.

It is an arithmetic number, because the mean of its divisors is an integer number (17541940).

Almost surely, 2^145346121 is an apocalyptic number.

It is an amenable number.

145346121 is a deficient number, since it is larger than the sum of its proper divisors (65157159).

145346121 is a wasteful number, since it uses less digits than its factorization.

145346121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42996 (or 42993 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 145346121 is about 12055.9579047042. The cubic root of 145346121 is about 525.7764728025.

Adding to 145346121 its reverse (121643541), we get a palindrome (266989662).

It can be divided in two parts, 1453 and 46121, that added together give a palindrome (47574).

The spelling of 145346121 in words is "one hundred forty-five million, three hundred forty-six thousand, one hundred twenty-one".