143212936 has 16 divisors (see below), whose sum is σ = 269700300. Its totient is φ = 71292864.

The previous prime is 143212897. The next prime is 143212939. The reversal of 143212936 is 639212341.

It can be written as a sum of positive squares in 2 ways, for example, as 108284836 + 34928100 = 10406^2 + 5910^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143212898 and 143212907.

It is not an unprimeable number, because it can be changed into a prime (143212939) 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, 37255 + ... + 40918.

Almost surely, 2^143212936 is an apocalyptic number.

It is an amenable number.

143212936 is a deficient number, since it is larger than the sum of its proper divisors (126487364).

143212936 is a wasteful number, since it uses less digits than its factorization.

143212936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78408 (or 78404 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 143212936 is about 11967.1607326049. The cubic root of 143212936 is about 523.1915840778.

The spelling of 143212936 in words is "one hundred forty-three million, two hundred twelve thousand, nine hundred thirty-six".