142499074747 has 4 divisors (see below), whose sum is σ = 142531051176. Its totient is φ = 142467098320.

The previous prime is 142499074741. The next prime is 142499074759. The reversal of 142499074747 is 747470994241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142499074747 is a prime.

It is a super-2 number, since 2×142499074747² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142499074691 and 142499074700.

It is not an unprimeable number, because it can be changed into a prime (142499074741) 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, 15981529 + ... + 15990442.

It is an arithmetic number, because the mean of its divisors is an integer number (35632762794).

Almost surely, 2^142499074747 is an apocalyptic number.

142499074747 is a deficient number, since it is larger than the sum of its proper divisors (31976429).

142499074747 is an equidigital number, since it uses as much as digits as its factorization.

142499074747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31976428.

The product of its (nonzero) digits is 14224896, while the sum is 58.

The spelling of 142499074747 in words is "one hundred forty-two billion, four hundred ninety-nine million, seventy-four thousand, seven hundred forty-seven".