149636 has 6 divisors (see below), whose sum is σ = 261870. Its totient is φ = 74816.

The previous prime is 149629. The next prime is 149689. The reversal of 149636 is 636941.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 65536 = 290^2 + 256^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 149599 and 149608.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18701 + ... + 18708.

It is an arithmetic number, because the mean of its divisors is an integer number (43645).

2¹⁴⁹⁶³⁶ is an apocalyptic number.

It is an amenable number.

149636 is a deficient number, since it is larger than the sum of its proper divisors (112234).

149636 is a wasteful number, since it uses less digits than its factorization.

149636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37413 (or 37411 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 149636 is about 386.8281272090. The cubic root of 149636 is about 53.0899150118.

The spelling of 149636 in words is "one hundred forty-nine thousand, six hundred thirty-six".