149826977 has 2 divisors, whose sum is σ = 149826978. Its totient is φ = 149826976.

The previous prime is 149826973. The next prime is 149826979. The reversal of 149826977 is 779628941.

149826977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149793121 + 33856 = 12239^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 149826977 - 2² = 149826973 is a prime.

Together with 149826979, 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 (149826973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74913488 + 74913489.

It is an arithmetic number, because the mean of its divisors is an integer number (74913489).

Almost surely, 2^149826977 is an apocalyptic number.

It is an amenable number.

149826977 is a deficient number, since it is larger than the sum of its proper divisors (1).

149826977 is an equidigital number, since it uses as much as digits as its factorization.

149826977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 53.

The square root of 149826977 is about 12240.3830413921. The cubic root of 149826977 is about 531.1249122424.

The spelling of 149826977 in words is "one hundred forty-nine million, eight hundred twenty-six thousand, nine hundred seventy-seven".