149564047 has 2 divisors, whose sum is σ = 149564048. Its totient is φ = 149564046.

The previous prime is 149564021. The next prime is 149564053. The reversal of 149564047 is 740465941.

149564047 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 is a cyclic number.

It is not a de Polignac number, because 149564047 - 2⁷ = 149563919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149564017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74782023 + 74782024.

It is an arithmetic number, because the mean of its divisors is an integer number (74782024).

Almost surely, 2^149564047 is an apocalyptic number.

149564047 is a deficient number, since it is larger than the sum of its proper divisors (1).

149564047 is an equidigital number, since it uses as much as digits as its factorization.

149564047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 149564047 is about 12229.6380567865. The cubic root of 149564047 is about 530.8140415632.

The spelling of 149564047 in words is "one hundred forty-nine million, five hundred sixty-four thousand, forty-seven".