30143153977 has 2 divisors, whose sum is σ = 30143153978. Its totient is φ = 30143153976.

The previous prime is 30143153939. The next prime is 30143153981. The reversal of 30143153977 is 77935134103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28871447056 + 1271706921 = 169916^2 + 35661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30143153977 is a prime.

It is a super-2 number, since 2×30143153977² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30143153177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071576988 + 15071576989.

It is an arithmetic number, because the mean of its divisors is an integer number (15071576989).

Almost surely, 2^30143153977 is an apocalyptic number.

It is an amenable number.

30143153977 is a deficient number, since it is larger than the sum of its proper divisors (1).

30143153977 is an equidigital number, since it uses as much as digits as its factorization.

30143153977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238140, while the sum is 43.

The spelling of 30143153977 in words is "thirty billion, one hundred forty-three million, one hundred fifty-three thousand, nine hundred seventy-seven".