145662552 has 96 divisors (see below), whose sum is σ = 465454080. Its totient is φ = 40271040.

The previous prime is 145662547. The next prime is 145662553. The reversal of 145662552 is 255266541.

145662552 is a `hidden beast` number, since 1 + 45 + 6 + 62 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145662553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10963 + ... + 20285.

It is an arithmetic number, because the mean of its divisors is an integer number (4848480).

Almost surely, 2^145662552 is an apocalyptic number.

145662552 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 145662552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232727040).

145662552 is an abundant number, since it is smaller than the sum of its proper divisors (319791528).

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

145662552 is a wasteful number, since it uses less digits than its factorization.

145662552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373 (or 9366 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 145662552 is about 12069.0741981314. The cubic root of 145662552 is about 526.1577497718.

The spelling of 145662552 in words is "one hundred forty-five million, six hundred sixty-two thousand, five hundred fifty-two".