143979507 has 12 divisors (see below), whose sum is σ = 237680560. Its totient is φ = 82273968.

The previous prime is 143979491. The next prime is 143979509. The reversal of 143979507 is 705979341.

It is not a de Polignac number, because 143979507 - 2⁴ = 143979491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143979509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1142632 + ... + 1142757.

Almost surely, 2^143979507 is an apocalyptic number.

143979507 is a deficient number, since it is larger than the sum of its proper divisors (93701053).

143979507 is a wasteful number, since it uses less digits than its factorization.

143979507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285402 (or 2285399 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 143979507 is about 11999.1460946186. The cubic root of 143979507 is about 524.1234133782.

The spelling of 143979507 in words is "one hundred forty-three million, nine hundred seventy-nine thousand, five hundred seven".