149214145 has 8 divisors (see below), whose sum is σ = 179133480. Its totient is φ = 119320320.

The previous prime is 149214139. The next prime is 149214157. The reversal of 149214145 is 541412941.

It can be written as a sum of positive squares in 4 ways, for example, as 5022081 + 144192064 = 2241^2 + 12008^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149214145 - 2⁷ = 149214017 is a prime.

It is a super-2 number, since 2×149214145² = 44529722136162050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 10615 + ... + 20275.

It is an arithmetic number, because the mean of its divisors is an integer number (22391685).

Almost surely, 2^149214145 is an apocalyptic number.

It is an amenable number.

149214145 is a deficient number, since it is larger than the sum of its proper divisors (29919335).

149214145 is an equidigital number, since it uses as much as digits as its factorization.

149214145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12755.

The product of its digits is 5760, while the sum is 31.

The square root of 149214145 is about 12215.3241872658. The cubic root of 149214145 is about 530.3997755092.

The spelling of 149214145 in words is "one hundred forty-nine million, two hundred fourteen thousand, one hundred forty-five".