143145730 has 32 divisors (see below), whose sum is σ = 317124864. Its totient is φ = 45302976.

The previous prime is 143145689. The next prime is 143145733. The reversal of 143145730 is 37541341.

It is not an unprimeable number, because it can be changed into a prime (143145733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77742 + ... + 79561.

It is an arithmetic number, because the mean of its divisors is an integer number (9910152).

Almost surely, 2^143145730 is an apocalyptic number.

143145730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143145730 is an abundant number, since it is smaller than the sum of its proper divisors (173979134).

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

143145730 is a wasteful number, since it uses less digits than its factorization.

143145730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157330.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 143145730 is about 11964.3524688969. The cubic root of 143145730 is about 523.1097313343.

The spelling of 143145730 in words is "one hundred forty-three million, one hundred forty-five thousand, seven hundred thirty".