145420312 has 16 divisors (see below), whose sum is σ = 288702360. Its totient is φ = 68433024.

The previous prime is 145420229. The next prime is 145420313. The reversal of 145420312 is 213024541.

It is a super-2 number, since 2×145420312² = 42294134284354688, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145420313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534498 + ... + 534769.

Almost surely, 2^145420312 is an apocalyptic number.

It is an amenable number.

145420312 is a deficient number, since it is larger than the sum of its proper divisors (143282048).

145420312 is a wasteful number, since it uses less digits than its factorization.

145420312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069290 (or 1069286 counting only the distinct ones).

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

The square root of 145420312 is about 12059.0344555441. The cubic root of 145420312 is about 525.8659173340.

Adding to 145420312 its reverse (213024541), we get a palindrome (358444853).

The spelling of 145420312 in words is "one hundred forty-five million, four hundred twenty thousand, three hundred twelve".