149156032638 has 8 divisors (see below), whose sum is σ = 298312065288. Its totient is φ = 49718677544.

The previous prime is 149156032609. The next prime is 149156032673. The reversal of 149156032638 is 836230651941.

149156032638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

149156032638 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12429669381 + ... + 12429669392.

It is an arithmetic number, because the mean of its divisors is an integer number (37289008161).

Almost surely, 2^149156032638 is an apocalyptic number.

149156032638 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.

149156032638 is a wasteful number, since it uses less digits than its factorization.

149156032638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24859338778.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 149156032638 in words is "one hundred forty-nine billion, one hundred fifty-six million, thirty-two thousand, six hundred thirty-eight".