149810465081 has 2 divisors, whose sum is σ = 149810465082. Its totient is φ = 149810465080.

The previous prime is 149810465071. The next prime is 149810465107. The reversal of 149810465081 is 180564018941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119657879056 + 30152586025 = 345916^2 + 173645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149810465081 is a prime.

It is a super-2 number, since 2×149810465081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149810465011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74905232540 + 74905232541.

It is an arithmetic number, because the mean of its divisors is an integer number (74905232541).

Almost surely, 2^149810465081 is an apocalyptic number.

It is an amenable number.

149810465081 is a deficient number, since it is larger than the sum of its proper divisors (1).

149810465081 is an equidigital number, since it uses as much as digits as its factorization.

149810465081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 149810465081 in words is "one hundred forty-nine billion, eight hundred ten million, four hundred sixty-five thousand, eighty-one".