151461144132021 has 6 divisors (see below), whose sum is σ = 218777208190710. Its totient is φ = 100974096088008.

The previous prime is 151461144131989. The next prime is 151461144132029. The reversal of 151461144132021 is 120231441164151.

151461144132021 is a `hidden beast` number, since 1 + 5 + 1 + 4 + 6 + 1 + 1 + 441 + 3 + 202 + 1 = 666.

151461144132021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 141017168754225 + 10443975377796 = 11875065^2 + 3231714^2 .

It is not a de Polignac number, because 151461144132021 - 2⁵ = 151461144131989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151461144132029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8414508007326 + ... + 8414508007343.

It is an arithmetic number, because the mean of its divisors is an integer number (36462868031785).

Almost surely, 2^{151461144132021} is an apocalyptic number.

It is an amenable number.

151461144132021 is a deficient number, since it is larger than the sum of its proper divisors (67316064058689).

151461144132021 is a wasteful number, since it uses less digits than its factorization.

151461144132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16829016014675 (or 16829016014672 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

Adding to 151461144132021 its reverse (120231441164151), we get a palindrome (271692585296172).

The spelling of 151461144132021 in words is "one hundred fifty-one trillion, four hundred sixty-one billion, one hundred forty-four million, one hundred thirty-two thousand, twenty-one".