145900146 has 24 divisors (see below), whose sum is σ = 339441840. Its totient is φ = 41685672.

The previous prime is 145900141. The next prime is 145900151. The reversal of 145900146 is 641009541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145900141) and next prime (145900151).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145900141) 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 11 ways as a sum of consecutive naturals, for example, 247836 + ... + 248423.

It is an arithmetic number, because the mean of its divisors is an integer number (14143410).

Almost surely, 2^145900146 is an apocalyptic number.

145900146 is an abundant number, since it is smaller than the sum of its proper divisors (193541694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145900146 is a wasteful number, since it uses less digits than its factorization.

145900146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496278 (or 496271 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 145900146 is about 12078.9132789337. The cubic root of 145900146 is about 526.4436709280.

Adding to 145900146 its reverse (641009541), we get a palindrome (786909687).

The spelling of 145900146 in words is "one hundred forty-five million, nine hundred thousand, one hundred forty-six".