149055047 has 2 divisors, whose sum is σ = 149055048. Its totient is φ = 149055046.

The previous prime is 149054999. The next prime is 149055073. The reversal of 149055047 is 740550941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149055047 - 2²² = 144860743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149054998 and 149055016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149055077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74527523 + 74527524.

It is an arithmetic number, because the mean of its divisors is an integer number (74527524).

Almost surely, 2^149055047 is an apocalyptic number.

149055047 is a deficient number, since it is larger than the sum of its proper divisors (1).

149055047 is an equidigital number, since it uses as much as digits as its factorization.

149055047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 149055047 is about 12208.8102204924. The cubic root of 149055047 is about 530.2111974245.

The spelling of 149055047 in words is "one hundred forty-nine million, fifty-five thousand, forty-seven".