128157083 has 4 divisors (see below), whose sum is σ = 128232768. Its totient is φ = 128081400.

The previous prime is 128157049. The next prime is 128157091. The reversal of 128157083 is 380751821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128157083 - 2¹⁴ = 128140699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128157013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35243 + ... + 38708.

It is an arithmetic number, because the mean of its divisors is an integer number (32058192).

Almost surely, 2^128157083 is an apocalyptic number.

128157083 is a deficient number, since it is larger than the sum of its proper divisors (75685).

128157083 is an equidigital number, since it uses as much as digits as its factorization.

128157083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75684.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 128157083 is about 11320.6485238258. The cubic root of 128157083 is about 504.1744942011.

The spelling of 128157083 in words is "one hundred twenty-eight million, one hundred fifty-seven thousand, eighty-three".