127530390 has 32 divisors (see below), whose sum is σ = 329618016. Its totient is φ = 31392000.

The previous prime is 127530367. The next prime is 127530401. The reversal of 127530390 is 93035721.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163111 + ... + 163890.

It is an arithmetic number, because the mean of its divisors is an integer number (10300563).

Almost surely, 2^127530390 is an apocalyptic number.

127530390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127530390 is an abundant number, since it is smaller than the sum of its proper divisors (202087626).

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

127530390 is a wasteful number, since it uses less digits than its factorization.

127530390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327024.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 127530390 is about 11292.9354022769. The cubic root of 127530390 is about 503.3513401839.

The spelling of 127530390 in words is "one hundred twenty-seven million, five hundred thirty thousand, three hundred ninety".