144645132 has 48 divisors (see below), whose sum is σ = 355848192. Its totient is φ = 45661440.

The previous prime is 144645131. The next prime is 144645133. The reversal of 144645132 is 231546441.

It is an interprime number because it is at equal distance from previous prime (144645131) and next prime (144645133).

It is a super-2 number, since 2×144645132² = 41844428422594848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144645132.

It is not an unprimeable number, because it can be changed into a prime (144645131) 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, 13348 + ... + 21620.

It is an arithmetic number, because the mean of its divisors is an integer number (7413504).

Almost surely, 2^144645132 is an apocalyptic number.

144645132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144645132 is an abundant number, since it is smaller than the sum of its proper divisors (211203060).

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

144645132 is a wasteful number, since it uses less digits than its factorization.

144645132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358 (or 8356 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 144645132 is about 12026.8504605321. The cubic root of 144645132 is about 524.9298554811.

The spelling of 144645132 in words is "one hundred forty-four million, six hundred forty-five thousand, one hundred thirty-two".