143634138 has 16 divisors (see below), whose sum is σ = 291978336. Its totient is φ = 47093040.

The previous prime is 143634137. The next prime is 143634151. The reversal of 143634138 is 831436341.

It is a junction number, because it is equal to n+sod(n) for n = 143634099 and 143634108.

It is not an unprimeable number, because it can be changed into a prime (143634137) 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, 195856 + ... + 196587.

It is an arithmetic number, because the mean of its divisors is an integer number (18248646).

Almost surely, 2^143634138 is an apocalyptic number.

143634138 is an abundant number, since it is smaller than the sum of its proper divisors (148344198).

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

143634138 is a wasteful number, since it uses less digits than its factorization.

143634138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392509.

The product of its digits is 20736, while the sum is 33.

The square root of 143634138 is about 11984.7460548816. The cubic root of 143634138 is about 523.7039997345.

The spelling of 143634138 in words is "one hundred forty-three million, six hundred thirty-four thousand, one hundred thirty-eight".