145245230 has 64 divisors (see below), whose sum is σ = 303464448. Its totient is φ = 49610880.

The previous prime is 145245223. The next prime is 145245251. The reversal of 145245230 is 32542541.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 145245230.

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, 91907 + ... + 93473.

It is an arithmetic number, because the mean of its divisors is an integer number (4741632).

Almost surely, 2^145245230 is an apocalyptic number.

145245230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145245230 is an abundant number, since it is smaller than the sum of its proper divisors (158219218).

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

145245230 is a wasteful number, since it uses less digits than its factorization.

145245230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 145245230 is about 12051.7728986237. The cubic root of 145245230 is about 525.6547899479.

Adding to 145245230 its reverse (32542541), we get a palindrome (177787771).

The spelling of 145245230 in words is "one hundred forty-five million, two hundred forty-five thousand, two hundred thirty".