145421353 has 16 divisors (see below), whose sum is σ = 181601280. Its totient is φ = 113130000.

The previous prime is 145421351. The next prime is 145421357. The reversal of 145421353 is 353124541.

It is a cyclic number.

It is not a de Polignac number, because 145421353 - 2¹ = 145421351 is a prime.

It is a super-3 number, since 3×145421353³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (145421351) 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 15 ways as a sum of consecutive naturals, for example, 63478 + ... + 65728.

It is an arithmetic number, because the mean of its divisors is an integer number (11350080).

Almost surely, 2^145421353 is an apocalyptic number.

It is an amenable number.

145421353 is a deficient number, since it is larger than the sum of its proper divisors (36179927).

145421353 is a wasteful number, since it uses less digits than its factorization.

145421353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108.

The product of its digits is 7200, while the sum is 28.

The square root of 145421353 is about 12059.0776181265. The cubic root of 145421353 is about 525.8671721452.

Adding to 145421353 its reverse (353124541), we get a palindrome (498545894).

The spelling of 145421353 in words is "one hundred forty-five million, four hundred twenty-one thousand, three hundred fifty-three".