151482145721 has 8 divisors (see below), whose sum is σ = 155318851464. Its totient is φ = 147652202880.

The previous prime is 151482145693. The next prime is 151482145753. The reversal of 151482145721 is 127541284151.

It can be written as a sum of positive squares in 4 ways, for example, as 16158223225 + 135323922496 = 127115^2 + 367864^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151482145721 - 2¹⁸ = 151481883577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151482145621) 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 in 7 ways as a sum of consecutive naturals, for example, 1645346 + ... + 1734971.

It is an arithmetic number, because the mean of its divisors is an integer number (19414856433).

Almost surely, 2^151482145721 is an apocalyptic number.

It is an amenable number.

151482145721 is a deficient number, since it is larger than the sum of its proper divisors (3836705743).

151482145721 is a wasteful number, since it uses less digits than its factorization.

151482145721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381451.

The product of its digits is 89600, while the sum is 41.

The spelling of 151482145721 in words is "one hundred fifty-one billion, four hundred eighty-two million, one hundred forty-five thousand, seven hundred twenty-one".