143149513 has 4 divisors (see below), whose sum is σ = 154161028. Its totient is φ = 132138000.

The previous prime is 143149511. The next prime is 143149529. The reversal of 143149513 is 315941341.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16744464 + 126405049 = 4092^2 + 11243^2 .

It is a cyclic number.

It is not a de Polignac number, because 143149513 - 2¹ = 143149511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143149511) 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, 5505738 + ... + 5505763.

It is an arithmetic number, because the mean of its divisors is an integer number (38540257).

Almost surely, 2^143149513 is an apocalyptic number.

143149513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

143149513 is a deficient number, since it is larger than the sum of its proper divisors (11011515).

143149513 is a wasteful number, since it uses less digits than its factorization.

143149513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011514.

The product of its digits is 6480, while the sum is 31.

The square root of 143149513 is about 11964.5105624927. The cubic root of 143149513 is about 523.1143394743.

The spelling of 143149513 in words is "one hundred forty-three million, one hundred forty-nine thousand, five hundred thirteen".