151881143 has 2 divisors, whose sum is σ = 151881144. Its totient is φ = 151881142.

The previous prime is 151881139. The next prime is 151881173. The reversal of 151881143 is 341188151.

151881143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (341188151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151881143 - 2² = 151881139 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151881113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75940571 + 75940572.

It is an arithmetic number, because the mean of its divisors is an integer number (75940572).

Almost surely, 2^151881143 is an apocalyptic number.

151881143 is a deficient number, since it is larger than the sum of its proper divisors (1).

151881143 is an equidigital number, since it uses as much as digits as its factorization.

151881143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 32.

The square root of 151881143 is about 12324.0067753957. The cubic root of 151881143 is about 533.5411889907.

The spelling of 151881143 in words is "one hundred fifty-one million, eight hundred eighty-one thousand, one hundred forty-three".