128760247 has 16 divisors (see below), whose sum is σ = 162738432. Its totient is φ = 98953920.

The previous prime is 128760217. The next prime is 128760251. The reversal of 128760247 is 742067821.

It is a cyclic number.

It is not a de Polignac number, because 128760247 - 2¹⁵ = 128727479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128760217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5833 + ... + 17074.

It is an arithmetic number, because the mean of its divisors is an integer number (10171152).

Almost surely, 2^128760247 is an apocalyptic number.

128760247 is a deficient number, since it is larger than the sum of its proper divisors (33978185).

128760247 is a wasteful number, since it uses less digits than its factorization.

128760247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22998.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 128760247 is about 11347.2572456960. The cubic root of 128760247 is about 504.9642127370.

The spelling of 128760247 in words is "one hundred twenty-eight million, seven hundred sixty thousand, two hundred forty-seven".