149564027 has 4 divisors (see below), whose sum is σ = 153606336. Its totient is φ = 145521720.

The previous prime is 149564021. The next prime is 149564047. The reversal of 149564027 is 720465941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149564027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149564021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021099 + ... + 2021172.

It is an arithmetic number, because the mean of its divisors is an integer number (38401584).

Almost surely, 2^149564027 is an apocalyptic number.

149564027 is a deficient number, since it is larger than the sum of its proper divisors (4042309).

149564027 is an equidigital number, since it uses as much as digits as its factorization.

149564027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042308.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 149564027 is about 12229.6372391008. The cubic root of 149564027 is about 530.8140179027.

The spelling of 149564027 in words is "one hundred forty-nine million, five hundred sixty-four thousand, twenty-seven".