30159768146 has 4 divisors (see below), whose sum is σ = 45239652222. Its totient is φ = 15079884072.

The previous prime is 30159768097. The next prime is 30159768193. The reversal of 30159768146 is 64186795103.

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

It can be written as a sum of positive squares in only one way, i.e., 20743200625 + 9416567521 = 144025^2 + 97039^2 .

It is a super-2 number, since 2×30159768146² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30159768094 and 30159768103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7539942035 + ... + 7539942038.

Almost surely, 2^30159768146 is an apocalyptic number.

30159768146 is a deficient number, since it is larger than the sum of its proper divisors (15079884076).

30159768146 is a wasteful number, since it uses less digits than its factorization.

30159768146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15079884075.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 30159768146 in words is "thirty billion, one hundred fifty-nine million, seven hundred sixty-eight thousand, one hundred forty-six".