149142644 has 12 divisors (see below), whose sum is σ = 298285344. Its totient is φ = 63918264.

The previous prime is 149142613. The next prime is 149142673. The reversal of 149142644 is 446241941.

149142644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

149142644 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663234 + ... + 2663289.

It is an arithmetic number, because the mean of its divisors is an integer number (24857112).

Almost surely, 2^149142644 is an apocalyptic number.

149142644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

149142644 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.

149142644 is a wasteful number, since it uses less digits than its factorization.

149142644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326534 (or 5326532 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 149142644 is about 12212.3971438862. The cubic root of 149142644 is about 530.3150423147.

The spelling of 149142644 in words is "one hundred forty-nine million, one hundred forty-two thousand, six hundred forty-four".