149056017 has 64 divisors (see below), whose sum is σ = 242694144. Its totient is φ = 80317440.

The previous prime is 149056013. The next prime is 149056057. The reversal of 149056017 is 710650941.

It is not a de Polignac number, because 149056017 - 2² = 149056013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (149056013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 892468 + ... + 892634.

It is an arithmetic number, because the mean of its divisors is an integer number (3792096).

Almost surely, 2^149056017 is an apocalyptic number.

149056017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

149056017 is a deficient number, since it is larger than the sum of its proper divisors (93638127).

149056017 is a wasteful number, since it uses less digits than its factorization.

149056017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 149056017 is about 12208.8499458385. The cubic root of 149056017 is about 530.2123475673.

The spelling of 149056017 in words is "one hundred forty-nine million, fifty-six thousand, seventeen".