151440139 has 2 divisors, whose sum is σ = 151440140. Its totient is φ = 151440138.

The previous prime is 151440137. The next prime is 151440151. The reversal of 151440139 is 931044151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151440139 - 2¹ = 151440137 is a prime.

Together with 151440137, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (151440137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75720069 + 75720070.

It is an arithmetic number, because the mean of its divisors is an integer number (75720070).

Almost surely, 2^151440139 is an apocalyptic number.

151440139 is a deficient number, since it is larger than the sum of its proper divisors (1).

151440139 is an equidigital number, since it uses as much as digits as its factorization.

151440139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 151440139 is about 12306.1016979383. The cubic root of 151440139 is about 533.0242894030.

The spelling of 151440139 in words is "one hundred fifty-one million, four hundred forty thousand, one hundred thirty-nine".