137750028 has 24 divisors (see below), whose sum is σ = 346141488. Its totient is φ = 42384576.

The previous prime is 137750023. The next prime is 137750033. The reversal of 137750028 is 820057731.

It is an interprime number because it is at equal distance from previous prime (137750023) and next prime (137750033).

It is not an unprimeable number, because it can be changed into a prime (137750023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441351 + ... + 441662.

It is an arithmetic number, because the mean of its divisors is an integer number (14422562).

Almost surely, 2^137750028 is an apocalyptic number.

It is an amenable number.

137750028 is an abundant number, since it is smaller than the sum of its proper divisors (208391460).

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

137750028 is a wasteful number, since it uses less digits than its factorization.

137750028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883033 (or 883031 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 137750028 is about 11736.6957871455. The cubic root of 137750028 is about 516.4527154851.

The spelling of 137750028 in words is "one hundred thirty-seven million, seven hundred fifty thousand, twenty-eight".