149208545 has 8 divisors (see below), whose sum is σ = 179119080. Its totient is φ = 119320960.

The previous prime is 149208523. The next prime is 149208557. The reversal of 149208545 is 545802941.

It can be written as a sum of positive squares in 4 ways, for example, as 36084049 + 113124496 = 6007^2 + 10636^2 .

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

It is not a de Polignac number, because 149208545 - 2¹⁶ = 149143009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149208499 and 149208508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16205 + ... + 23685.

It is an arithmetic number, because the mean of its divisors is an integer number (22389885).

Almost surely, 2^149208545 is an apocalyptic number.

It is an amenable number.

149208545 is a deficient number, since it is larger than the sum of its proper divisors (29910535).

149208545 is an equidigital number, since it uses as much as digits as its factorization.

149208545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 149208545 is about 12215.0949648376. The cubic root of 149208545 is about 530.3931401331.

The spelling of 149208545 in words is "one hundred forty-nine million, two hundred eight thousand, five hundred forty-five".