143402012 has 12 divisors (see below), whose sum is σ = 270257736. Its totient is φ = 66185520.

The previous prime is 143402009. The next prime is 143402023. The reversal of 143402012 is 210204341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378814 + ... + 1378917.

It is an arithmetic number, because the mean of its divisors is an integer number (22521478).

Almost surely, 2^143402012 is an apocalyptic number.

It is an amenable number.

143402012 is a deficient number, since it is larger than the sum of its proper divisors (126855724).

143402012 is a wasteful number, since it uses less digits than its factorization.

143402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757748 (or 2757746 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 143402012 is about 11975.0579121773. The cubic root of 143402012 is about 523.4217296510.

Adding to 143402012 its reverse (210204341), we get a palindrome (353606353).

The spelling of 143402012 in words is "one hundred forty-three million, four hundred two thousand, twelve".