149055017 has 4 divisors (see below), whose sum is σ = 149086980. Its totient is φ = 149023056.

The previous prime is 149054999. The next prime is 149055047. The reversal of 149055017 is 710550941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710550941 = 107 ⋅6640663.

It can be written as a sum of positive squares in 2 ways, for example, as 105349696 + 43705321 = 10264^2 + 6611^2 .

It is a cyclic number.

It is not a de Polignac number, because 149055017 - 2¹⁴ = 149038633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149055047) 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, 7478 + ... + 18815.

It is an arithmetic number, because the mean of its divisors is an integer number (37271745).

Almost surely, 2^149055017 is an apocalyptic number.

It is an amenable number.

149055017 is a deficient number, since it is larger than the sum of its proper divisors (31963).

149055017 is an equidigital number, since it uses as much as digits as its factorization.

149055017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31962.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 149055017 is about 12208.8089918714. The cubic root of 149055017 is about 530.2111618530.

The spelling of 149055017 in words is "one hundred forty-nine million, fifty-five thousand, seventeen".