151420542681 has 4 divisors (see below), whose sum is σ = 201894056912. Its totient is φ = 100947028452.

The previous prime is 151420542677. The next prime is 151420542683. The reversal of 151420542681 is 186245024151.

It is a happy number.

151420542681 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 not a de Polignac number, because 151420542681 - 2² = 151420542677 is a prime.

It is a super-2 number, since 2×151420542681² (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 (151420542683) 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, 25236757111 + ... + 25236757116.

It is an arithmetic number, because the mean of its divisors is an integer number (50473514228).

Almost surely, 2^151420542681 is an apocalyptic number.

It is an amenable number.

151420542681 is a deficient number, since it is larger than the sum of its proper divisors (50473514231).

151420542681 is an equidigital number, since it uses as much as digits as its factorization.

151420542681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50473514230.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 151420542681 in words is "one hundred fifty-one billion, four hundred twenty million, five hundred forty-two thousand, six hundred eighty-one".