145421301 has 8 divisors (see below), whose sum is σ = 198624384. Its totient is φ = 94582880.

The previous prime is 145421299. The next prime is 145421317. The reversal of 145421301 is 103124541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145421301 - 2¹ = 145421299 is a prime.

It is a super-2 number, since 2×145421301² = 42294709569065202, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145421321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591021 + ... + 591266.

It is an arithmetic number, because the mean of its divisors is an integer number (24828048).

Almost surely, 2^145421301 is an apocalyptic number.

It is an amenable number.

145421301 is a deficient number, since it is larger than the sum of its proper divisors (53203083).

145421301 is a wasteful number, since it uses less digits than its factorization.

145421301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182331.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145421301 is about 12059.0754620742. The cubic root of 145421301 is about 525.8671094650.

Adding to 145421301 its reverse (103124541), we get a palindrome (248545842).

The spelling of 145421301 in words is "one hundred forty-five million, four hundred twenty-one thousand, three hundred one".