145622204 has 96 divisors (see below), whose sum is σ = 336825216. Its totient is φ = 53452800.

The previous prime is 145622171. The next prime is 145622249. The reversal of 145622204 is 402226541.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 624872 + ... + 625104.

It is an arithmetic number, because the mean of its divisors is an integer number (3508596).

Almost surely, 2^145622204 is an apocalyptic number.

145622204 is a gapful number since it is divisible by the number (14) 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 145622204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168412608).

145622204 is an abundant number, since it is smaller than the sum of its proper divisors (191203012).

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

145622204 is a wasteful number, since it uses less digits than its factorization.

145622204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 145622204 is about 12067.4025374146. The cubic root of 145622204 is about 526.1091640210.

Adding to 145622204 its reverse (402226541), we get a palindrome (547848745).

The spelling of 145622204 in words is "one hundred forty-five million, six hundred twenty-two thousand, two hundred four".