154701713989 has 2 divisors, whose sum is σ = 154701713990. Its totient is φ = 154701713988.

The previous prime is 154701713927. The next prime is 154701714029. The reversal of 154701713989 is 989317107451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93371191489 + 61330522500 = 305567^2 + 247650^2 .

It is an emirp because it is prime and its reverse (989317107451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154701713989 is a prime.

It is a super-2 number, since 2×154701713989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154701719989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77350856994 + 77350856995.

It is an arithmetic number, because the mean of its divisors is an integer number (77350856995).

Almost surely, 2^154701713989 is an apocalyptic number.

It is an amenable number.

154701713989 is a deficient number, since it is larger than the sum of its proper divisors (1).

154701713989 is an equidigital number, since it uses as much as digits as its factorization.

154701713989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 154701713989 in words is "one hundred fifty-four billion, seven hundred one million, seven hundred thirteen thousand, nine hundred eighty-nine".