143149951 has 4 divisors (see below), whose sum is σ = 163599952. Its totient is φ = 122699952.

The previous prime is 143149939. The next prime is 143149969. The reversal of 143149951 is 159941341.

143149951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143149951 - 2¹⁷ = 143018879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143149951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143149651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10224990 + ... + 10225003.

It is an arithmetic number, because the mean of its divisors is an integer number (40899988).

Almost surely, 2^143149951 is an apocalyptic number.

143149951 is a deficient number, since it is larger than the sum of its proper divisors (20450001).

143149951 is an equidigital number, since it uses as much as digits as its factorization.

143149951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20450000.

The product of its digits is 19440, while the sum is 37.

The square root of 143149951 is about 11964.5288666123. The cubic root of 143149951 is about 523.1148730046.

The spelling of 143149951 in words is "one hundred forty-three million, one hundred forty-nine thousand, nine hundred fifty-one".