137189420 has 12 divisors (see below), whose sum is σ = 288097824. Its totient is φ = 54875760.

The previous prime is 137189419. The next prime is 137189441. The reversal of 137189420 is 24981731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3429716 + ... + 3429755.

It is an arithmetic number, because the mean of its divisors is an integer number (24008152).

Almost surely, 2^137189420 is an apocalyptic number.

137189420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137189420 is an abundant number, since it is smaller than the sum of its proper divisors (150908404).

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

137189420 is a wasteful number, since it uses less digits than its factorization.

137189420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6859480 (or 6859478 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 137189420 is about 11712.7887371027. The cubic root of 137189420 is about 515.7511519678.

The spelling of 137189420 in words is "one hundred thirty-seven million, one hundred eighty-nine thousand, four hundred twenty".