145542204 has 72 divisors (see below), whose sum is σ = 398343120. Its totient is φ = 45948384.

The previous prime is 145542197. The next prime is 145542227. The reversal of 145542204 is 402245541.

145542204 is a `hidden beast` number, since 1 + 455 + 4 + 2 + 204 = 666.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37122 + ... + 40854.

Almost surely, 2^145542204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145542204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199171560).

145542204 is an abundant number, since it is smaller than the sum of its proper divisors (252800916).

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

145542204 is a wasteful number, since it uses less digits than its factorization.

145542204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784 (or 3757 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 145542204 is about 12064.0873670577. The cubic root of 145542204 is about 526.0128040756.

Adding to 145542204 its reverse (402245541), we get a palindrome (547787745).

The spelling of 145542204 in words is "one hundred forty-five million, five hundred forty-two thousand, two hundred four".