151172302081 has 4 divisors (see below), whose sum is σ = 151310612692. Its totient is φ = 151033991472.

The previous prime is 151172302051. The next prime is 151172302093. The reversal of 151172302081 is 180203271151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180203271151 = 761 ⋅236797991.

It can be written as a sum of positive squares in 2 ways, for example, as 112683747856 + 38488554225 = 335684^2 + 196185^2 .

It is a cyclic number.

It is not a de Polignac number, because 151172302081 - 2⁷ = 151172301953 is a prime.

It is a super-2 number, since 2×151172302081² (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 (151172302051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69153666 + ... + 69155851.

It is an arithmetic number, because the mean of its divisors is an integer number (37827653173).

Almost surely, 2^151172302081 is an apocalyptic number.

It is an amenable number.

151172302081 is a deficient number, since it is larger than the sum of its proper divisors (138310611).

151172302081 is a wasteful number, since it uses less digits than its factorization.

151172302081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138310610.

The product of its (nonzero) digits is 3360, while the sum is 31.

The spelling of 151172302081 in words is "one hundred fifty-one billion, one hundred seventy-two million, three hundred two thousand, eighty-one".