149086505 has 8 divisors (see below), whose sum is σ = 183739272. Its totient is φ = 116045568.

The previous prime is 149086499. The next prime is 149086507. The reversal of 149086505 is 505680941.

It can be written as a sum of positive squares in 4 ways, for example, as 36132121 + 112954384 = 6011^2 + 10628^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 149086505 - 2⁴ = 149086489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149086507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402752 + ... + 403121.

It is an arithmetic number, because the mean of its divisors is an integer number (22967409).

Almost surely, 2^149086505 is an apocalyptic number.

It is an amenable number.

149086505 is a deficient number, since it is larger than the sum of its proper divisors (34652767).

149086505 is an equidigital number, since it uses as much as digits as its factorization.

149086505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805915.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 149086505 is about 12210.0984844513. The cubic root of 149086505 is about 530.2484950783.

The spelling of 149086505 in words is "one hundred forty-nine million, eighty-six thousand, five hundred five".