151481273621 has 4 divisors (see below), whose sum is σ = 152410606752. Its totient is φ = 150551940492.

The previous prime is 151481273611. The next prime is 151481273627. The reversal of 151481273621 is 126372184151.

151481273621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151481273621 - 2⁶ = 151481273557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151481273627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464666321 + ... + 464666646.

It is an arithmetic number, because the mean of its divisors is an integer number (38102651688).

Almost surely, 2^151481273621 is an apocalyptic number.

It is an amenable number.

151481273621 is a deficient number, since it is larger than the sum of its proper divisors (929333131).

151481273621 is an equidigital number, since it uses as much as digits as its factorization.

151481273621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929333130.

The product of its digits is 80640, while the sum is 41.

The spelling of 151481273621 in words is "one hundred fifty-one billion, four hundred eighty-one million, two hundred seventy-three thousand, six hundred twenty-one".