145021414 has 16 divisors (see below), whose sum is σ = 233856000. Its totient is φ = 67231944.

The previous prime is 145021403. The next prime is 145021421. The reversal of 145021414 is 414120541.

145021414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38814 + ... + 42385.

It is an arithmetic number, because the mean of its divisors is an integer number (14616000).

Almost surely, 2^145021414 is an apocalyptic number.

145021414 is a deficient number, since it is larger than the sum of its proper divisors (88834586).

145021414 is a wasteful number, since it uses less digits than its factorization.

145021414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81267.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 145021414 is about 12042.4837139188. The cubic root of 145021414 is about 525.3846481213.

Adding to 145021414 its reverse (414120541), we get a palindrome (559141955).

The spelling of 145021414 in words is "one hundred forty-five million, twenty-one thousand, four hundred fourteen".