149163738 has 8 divisors (see below), whose sum is σ = 298327488. Its totient is φ = 49721244.

The previous prime is 149163701. The next prime is 149163739. The reversal of 149163738 is 837361941.

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

149163738 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 149163738.

It is not an unprimeable number, because it can be changed into a prime (149163739) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12430306 + ... + 12430317.

It is an arithmetic number, because the mean of its divisors is an integer number (37290936).

Almost surely, 2^149163738 is an apocalyptic number.

149163738 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.

149163738 is a wasteful number, since it uses less digits than its factorization.

149163738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24860628.

The product of its digits is 108864, while the sum is 42.

The square root of 149163738 is about 12213.2607439619. The cubic root of 149163738 is about 530.3400428508.

The spelling of 149163738 in words is "one hundred forty-nine million, one hundred sixty-three thousand, seven hundred thirty-eight".