149386877 has 2 divisors, whose sum is σ = 149386878. Its totient is φ = 149386876.

The previous prime is 149386829. The next prime is 149386883. The reversal of 149386877 is 778683941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145106116 + 4280761 = 12046^2 + 2069^2 .

It is a cyclic number.

It is not a de Polignac number, because 149386877 - 2⁶ = 149386813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149386177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74693438 + 74693439.

It is an arithmetic number, because the mean of its divisors is an integer number (74693439).

Almost surely, 2^149386877 is an apocalyptic number.

It is an amenable number.

149386877 is a deficient number, since it is larger than the sum of its proper divisors (1).

149386877 is an equidigital number, since it uses as much as digits as its factorization.

149386877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 53.

The square root of 149386877 is about 12222.3924417440. The cubic root of 149386877 is about 530.6043622000.

The spelling of 149386877 in words is "one hundred forty-nine million, three hundred eighty-six thousand, eight hundred seventy-seven".