150420641281 has 9 divisors (see below), whose sum is σ = 155441869569. Its totient is φ = 145556727300.

The previous prime is 150420641279. The next prime is 150420641297. The reversal of 150420641281 is 182146024051.

The square root of 150420641281 is 387841.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 150420641281 - 2¹ = 150420641279 is a prime.

It is a super-2 number, since 2×150420641281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150420645281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12016816 + ... + 12029326.

It is an arithmetic number, because the mean of its divisors is an integer number (17271318841).

Almost surely, 2^150420641281 is an apocalyptic number.

150420641281 is the 387841-st square number.

150420641281 is the 193921-st centered octagonal number.

It is an amenable number.

150420641281 is a deficient number, since it is larger than the sum of its proper divisors (5021228288).

150420641281 is an frugal number, since it uses more digits than its factorization.

150420641281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25084 (or 12542 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 150420641281 in words is "one hundred fifty billion, four hundred twenty million, six hundred forty-one thousand, two hundred eighty-one".