137942646 has 8 divisors (see below), whose sum is σ = 275885304. Its totient is φ = 45980880.

The previous prime is 137942639. The next prime is 137942659. The reversal of 137942646 is 646249731.

137942646 is digitally balanced in base 2 and base 3, because in such bases 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.

137942646 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 137942598 and 137942607.

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, 11495215 + ... + 11495226.

It is an arithmetic number, because the mean of its divisors is an integer number (34485663).

Almost surely, 2^137942646 is an apocalyptic number.

137942646 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.

137942646 is a wasteful number, since it uses less digits than its factorization.

137942646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22990446.

The product of its digits is 217728, while the sum is 42.

The square root of 137942646 is about 11744.8987224241. The cubic root of 137942646 is about 516.6933246507.

The spelling of 137942646 in words is "one hundred thirty-seven million, nine hundred forty-two thousand, six hundred forty-six".