143145897 has 8 divisors (see below), whose sum is σ = 191006880. Its totient is φ = 95357760.

The previous prime is 143145889. The next prime is 143145911. The reversal of 143145897 is 798541341.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143145897 - 2³ = 143145889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143145097) 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, 13447 + ... + 21612.

It is an arithmetic number, because the mean of its divisors is an integer number (23875860).

Almost surely, 2^143145897 is an apocalyptic number.

It is an amenable number.

143145897 is a deficient number, since it is larger than the sum of its proper divisors (47860983).

143145897 is a wasteful number, since it uses less digits than its factorization.

143145897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36423.

The product of its digits is 120960, while the sum is 42.

The square root of 143145897 is about 11964.3594479604. The cubic root of 143145897 is about 523.1099347617.

The spelling of 143145897 in words is "one hundred forty-three million, one hundred forty-five thousand, eight hundred ninety-seven".