149377619 has 2 divisors, whose sum is σ = 149377620. Its totient is φ = 149377618.

The previous prime is 149377603. The next prime is 149377643. The reversal of 149377619 is 916773941.

149377619 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 a cyclic number.

It is not a de Polignac number, because 149377619 - 2⁴ = 149377603 is a prime.

It is a super-2 number, since 2×149377619² = 44627346116218322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149377819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74688809 + 74688810.

It is an arithmetic number, because the mean of its divisors is an integer number (74688810).

Almost surely, 2^149377619 is an apocalyptic number.

149377619 is a deficient number, since it is larger than the sum of its proper divisors (1).

149377619 is an equidigital number, since it uses as much as digits as its factorization.

149377619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The square root of 149377619 is about 12222.0137047869. The cubic root of 149377619 is about 530.5934008698.

The spelling of 149377619 in words is "one hundred forty-nine million, three hundred seventy-seven thousand, six hundred nineteen".