145969152 has 104 divisors (see below), whose sum is σ = 445066176. Its totient is φ = 41680896.

The previous prime is 145969129. The next prime is 145969163. The reversal of 145969152 is 251969541.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 85168 + ... + 86864.

Almost surely, 2^145969152 is an apocalyptic number.

145969152 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 145969152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222533088).

145969152 is an abundant number, since it is smaller than the sum of its proper divisors (299097024).

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

145969152 is an equidigital number, since it uses as much as digits as its factorization.

145969152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1709 counting only the distinct ones).

The product of its digits is 97200, while the sum is 42.

The square root of 145969152 is about 12081.7694068377. The cubic root of 145969152 is about 526.5266547293.

The spelling of 145969152 in words is "one hundred forty-five million, nine hundred sixty-nine thousand, one hundred fifty-two".