145722300 has 72 divisors (see below), whose sum is σ = 446440176. Its totient is φ = 36572160.

The previous prime is 145722299. The next prime is 145722307. The reversal of 145722300 is 3227541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145722307) 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, 9187 + ... + 19386.

It is an arithmetic number, because the mean of its divisors is an integer number (6200558).

Almost surely, 2^145722300 is an apocalyptic number.

145722300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145722300 is an abundant number, since it is smaller than the sum of its proper divisors (300717876).

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

145722300 is a wasteful number, since it uses less digits than its factorization.

145722300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28607 (or 28600 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 145722300 is about 12071.5491963542. The cubic root of 145722300 is about 526.2296798950.

Adding to 145722300 its reverse (3227541), we get a palindrome (148949841).

The spelling of 145722300 in words is "one hundred forty-five million, seven hundred twenty-two thousand, three hundred".