145403230 has 16 divisors (see below), whose sum is σ = 299115360. Its totient is φ = 49852512.

The previous prime is 145403207. The next prime is 145403231. The reversal of 145403230 is 32304541.

It is a super-2 number, since 2×145403230² = 42284198588865800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145403231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038525 + ... + 1038664.

It is an arithmetic number, because the mean of its divisors is an integer number (18694710).

Almost surely, 2^145403230 is an apocalyptic number.

145403230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145403230 is an abundant number, since it is smaller than the sum of its proper divisors (153712130).

145403230 is a wasteful number, since it uses less digits than its factorization.

145403230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077203.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 145403230 is about 12058.3261690833. The cubic root of 145403230 is about 525.8453260029.

Adding to 145403230 its reverse (32304541), we get a palindrome (177707771).

The spelling of 145403230 in words is "one hundred forty-five million, four hundred three thousand, two hundred thirty".