151840357181 has 16 divisors (see below), whose sum is σ = 155380745520. Its totient is φ = 148351357440.

The previous prime is 151840357139. The next prime is 151840357187. The reversal of 151840357181 is 181753048151.

It can be written as a sum of positive squares in 8 ways, for example, as 27802561081 + 124037796100 = 166741^2 + 352190^2 .

It is a cyclic number.

It is not a de Polignac number, because 151840357181 - 2¹⁴ = 151840340797 is a prime.

It is a super-2 number, since 2×151840357181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151840357187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2499095 + ... + 2559131.

It is an arithmetic number, because the mean of its divisors is an integer number (9711296595).

Almost surely, 2^151840357181 is an apocalyptic number.

It is an amenable number.

151840357181 is a deficient number, since it is larger than the sum of its proper divisors (3540388339).

151840357181 is a wasteful number, since it uses less digits than its factorization.

151840357181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60464.

The product of its (nonzero) digits is 134400, while the sum is 44.

The spelling of 151840357181 in words is "one hundred fifty-one billion, eight hundred forty million, three hundred fifty-seven thousand, one hundred eighty-one".