149638134 has 8 divisors (see below), whose sum is σ = 299276280. Its totient is φ = 49879376.

The previous prime is 149638079. The next prime is 149638141. The reversal of 149638134 is 431836941.

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

149638134 is an admirable number.

It is a super-2 number, since 2×149638134² = 44783142294003912, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149638092 and 149638101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12469839 + ... + 12469850.

It is an arithmetic number, because the mean of its divisors is an integer number (37409535).

Almost surely, 2^149638134 is an apocalyptic number.

149638134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149638134 is a wasteful number, since it uses less digits than its factorization.

149638134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24939694.

The product of its digits is 62208, while the sum is 39.

The square root of 149638134 is about 12232.6666757498. Note that the first 4 decimals coincide. The cubic root of 149638134 is about 530.9016738719.

The spelling of 149638134 in words is "one hundred forty-nine million, six hundred thirty-eight thousand, one hundred thirty-four".