142943396 has 6 divisors (see below), whose sum is σ = 250150950. Its totient is φ = 71471696.

The previous prime is 142943369. The next prime is 142943399. The reversal of 142943396 is 693349241.

It can be written as a sum of positive squares in only one way, i.e., 141943396 + 1000000 = 11914^2 + 1000^2 .

It is not an unprimeable number, because it can be changed into a prime (142943399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17867921 + ... + 17867928.

It is an arithmetic number, because the mean of its divisors is an integer number (41691825).

Almost surely, 2^142943396 is an apocalyptic number.

It is an amenable number.

142943396 is a deficient number, since it is larger than the sum of its proper divisors (107207554).

142943396 is a wasteful number, since it uses less digits than its factorization.

142943396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35735853 (or 35735851 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 142943396 is about 11955.8937767111. The cubic root of 142943396 is about 522.8631462805.

The spelling of 142943396 in words is "one hundred forty-two million, nine hundred forty-three thousand, three hundred ninety-six".