145388630 has 16 divisors (see below), whose sum is σ = 261863280. Its totient is φ = 58119072.

The previous prime is 145388623. The next prime is 145388657. The reversal of 145388630 is 36883541.

It is a super-2 number, since 2×145388630² = 42275707466553800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 17177 + ... + 24203.

It is an arithmetic number, because the mean of its divisors is an integer number (16366455).

Almost surely, 2^145388630 is an apocalyptic number.

145388630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145388630 is a deficient number, since it is larger than the sum of its proper divisors (116474650).

145388630 is a wasteful number, since it uses less digits than its factorization.

145388630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9103.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 145388630 is about 12057.7207630630. The cubic root of 145388630 is about 525.8277252964.

The spelling of 145388630 in words is "one hundred forty-five million, three hundred eighty-eight thousand, six hundred thirty".