145157230 has 16 divisors (see below), whose sum is σ = 262640304. Its totient is φ = 57761280.

The previous prime is 145157227. The next prime is 145157231. The reversal of 145157230 is 32751541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145157231) 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, 35676 + ... + 39535.

It is an arithmetic number, because the mean of its divisors is an integer number (16415019).

Almost surely, 2^145157230 is an apocalyptic number.

145157230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145157230 is a deficient number, since it is larger than the sum of its proper divisors (117483074).

145157230 is a wasteful number, since it uses less digits than its factorization.

145157230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75411.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 145157230 is about 12048.1214303310. The cubic root of 145157230 is about 525.5486086830.

The spelling of 145157230 in words is "one hundred forty-five million, one hundred fifty-seven thousand, two hundred thirty".