145212912 has 240 divisors, whose sum is σ = 483406560. Its totient is φ = 42052608.

The previous prime is 145212833. The next prime is 145212923. The reversal of 145212912 is 219212541.

145212912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8541928 + ... + 8541944.

It is an arithmetic number, because the mean of its divisors is an integer number (2014194).

Almost surely, 2^145212912 is an apocalyptic number.

145212912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145212912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241703280).

145212912 is an abundant number, since it is smaller than the sum of its proper divisors (338193648).

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

145212912 is an equidigital number, since it uses as much as digits as its factorization.

145212912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 35 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 145212912 is about 12050.4320254504. The cubic root of 145212912 is about 525.6157998628.

The spelling of 145212912 in words is "one hundred forty-five million, two hundred twelve thousand, nine hundred twelve".