149347859 has 2 divisors, whose sum is σ = 149347860. Its totient is φ = 149347858.

The previous prime is 149347823. The next prime is 149347931. The reversal of 149347859 is 958743941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149347859 - 2¹² = 149343763 is a prime.

It is not a weakly prime, because it can be changed into another prime (149347819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74673929 + 74673930.

It is an arithmetic number, because the mean of its divisors is an integer number (74673930).

Almost surely, 2^149347859 is an apocalyptic number.

149347859 is a deficient number, since it is larger than the sum of its proper divisors (1).

149347859 is an equidigital number, since it uses as much as digits as its factorization.

149347859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 149347859 is about 12220.7961688263. The cubic root of 149347859 is about 530.5581624174.

The spelling of 149347859 in words is "one hundred forty-nine million, three hundred forty-seven thousand, eight hundred fifty-nine".