151324081 has 2 divisors, whose sum is σ = 151324082. Its totient is φ = 151324080.

The previous prime is 151324079. The next prime is 151324087. The reversal of 151324081 is 180423151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141991056 + 9333025 = 11916^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 151324081 - 2¹ = 151324079 is a prime.

It is a super-2 number, since 2×151324081² = 45797954980989122, which contains 22 as substring.

Together with 151324079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (151324087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75662040 + 75662041.

It is an arithmetic number, because the mean of its divisors is an integer number (75662041).

Almost surely, 2^151324081 is an apocalyptic number.

It is an amenable number.

151324081 is a deficient number, since it is larger than the sum of its proper divisors (1).

151324081 is an equidigital number, since it uses as much as digits as its factorization.

151324081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 151324081 is about 12301.3853284904. The cubic root of 151324081 is about 532.8880913801. Note that the first 3 decimals are identical.

The spelling of 151324081 in words is "one hundred fifty-one million, three hundred twenty-four thousand, eighty-one".