149418377 has 2 divisors, whose sum is σ = 149418378. Its totient is φ = 149418376.

The previous prime is 149418361. The next prime is 149418383. The reversal of 149418377 is 773814941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149352841 + 65536 = 12221^2 + 256^2 .

It is an emirp because it is prime and its reverse (773814941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149418377 - 2⁴ = 149418361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149418307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74709188 + 74709189.

It is an arithmetic number, because the mean of its divisors is an integer number (74709189).

Almost surely, 2^149418377 is an apocalyptic number.

It is an amenable number.

149418377 is a deficient number, since it is larger than the sum of its proper divisors (1).

149418377 is an equidigital number, since it uses as much as digits as its factorization.

149418377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 149418377 is about 12223.6809922380. The cubic root of 149418377 is about 530.6416543261.

The spelling of 149418377 in words is "one hundred forty-nine million, four hundred eighteen thousand, three hundred seventy-seven".