149518656073 has 2 divisors, whose sum is σ = 149518656074. Its totient is φ = 149518656072.

The previous prime is 149518656029. The next prime is 149518656101. The reversal of 149518656073 is 370656815941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106349036544 + 43169619529 = 326112^2 + 207773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149518656073 is a prime.

It is not a weakly prime, because it can be changed into another prime (149518656673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74759328036 + 74759328037.

It is an arithmetic number, because the mean of its divisors is an integer number (74759328037).

Almost surely, 2^149518656073 is an apocalyptic number.

It is an amenable number.

149518656073 is a deficient number, since it is larger than the sum of its proper divisors (1).

149518656073 is an equidigital number, since it uses as much as digits as its factorization.

149518656073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 149518656073 in words is "one hundred forty-nine billion, five hundred eighteen million, six hundred fifty-six thousand, seventy-three".