145227612 has 48 divisors (see below), whose sum is σ = 355525632. Its totient is φ = 46052160.

The previous prime is 145227611. The next prime is 145227661. The reversal of 145227612 is 216722541.

It is a self number, because there is not a number n which added to its sum of digits gives 145227612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145227611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53037 + ... + 55707.

It is an arithmetic number, because the mean of its divisors is an integer number (7406784).

Almost surely, 2^145227612 is an apocalyptic number.

145227612 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 145227612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177762816).

145227612 is an abundant number, since it is smaller than the sum of its proper divisors (210298020).

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

145227612 is a wasteful number, since it uses less digits than its factorization.

145227612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898 (or 2896 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 145227612 is about 12051.0419466534. The cubic root of 145227612 is about 525.6335354104.

The spelling of 145227612 in words is "one hundred forty-five million, two hundred twenty-seven thousand, six hundred twelve".