145421302 has 8 divisors (see below), whose sum is σ = 234911376. Its totient is φ = 67117512.

The previous prime is 145421299. The next prime is 145421317. The reversal of 145421302 is 203124541.

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

It is a super-2 number, since 2×145421302² = 42294710150750408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2796538 + ... + 2796589.

It is an arithmetic number, because the mean of its divisors is an integer number (29363922).

Almost surely, 2^145421302 is an apocalyptic number.

145421302 is a deficient number, since it is larger than the sum of its proper divisors (89490074).

145421302 is a wasteful number, since it uses less digits than its factorization.

145421302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593142.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 145421302 is about 12059.0755035367. The cubic root of 145421302 is about 525.8671106704.

Adding to 145421302 its reverse (203124541), we get a palindrome (348545843).

The spelling of 145421302 in words is "one hundred forty-five million, four hundred twenty-one thousand, three hundred two".