142447814402 has 8 divisors (see below), whose sum is σ = 213679263756. Its totient is φ = 71221393152.

The previous prime is 142447814381. The next prime is 142447814407. The reversal of 142447814402 is 204418744241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142393777201 + 54037201 = 377351^2 + 7351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 142447814402.

It is not an unprimeable number, because it can be changed into a prime (142447814407) 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, 1185383 + ... + 1300010.

Almost surely, 2^142447814402 is an apocalyptic number.

142447814402 is a deficient number, since it is larger than the sum of its proper divisors (71231449354).

142447814402 is a wasteful number, since it uses less digits than its factorization.

142447814402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514052.

The product of its (nonzero) digits is 229376, while the sum is 41.

The spelling of 142447814402 in words is "one hundred forty-two billion, four hundred forty-seven million, eight hundred fourteen thousand, four hundred two".