128101379 has 4 divisors (see below), whose sum is σ = 146401584. Its totient is φ = 109801176.

The previous prime is 128101361. The next prime is 128101397. The reversal of 128101379 is 973101821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973101821 = 137 ⋅7102933.

It is an interprime number because it is at equal distance from previous prime (128101361) and next prime (128101397).

It is a cyclic number.

It is not a de Polignac number, because 128101379 - 2⁸ = 128101123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128101319) 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, 9150092 + ... + 9150105.

It is an arithmetic number, because the mean of its divisors is an integer number (36600396).

Almost surely, 2^128101379 is an apocalyptic number.

128101379 is a deficient number, since it is larger than the sum of its proper divisors (18300205).

128101379 is an equidigital number, since it uses as much as digits as its factorization.

128101379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18300204.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 128101379 is about 11318.1879733463. The cubic root of 128101379 is about 504.1014364469.

The spelling of 128101379 in words is "one hundred twenty-eight million, one hundred one thousand, three hundred seventy-nine".