128719495 has 16 divisors (see below), whose sum is σ = 164347488. Its totient is φ = 96445440.

The previous prime is 128719489. The next prime is 128719501. The reversal of 128719495 is 594917821.

It is an interprime number because it is at equal distance from previous prime (128719489) and next prime (128719501).

It is not a de Polignac number, because 128719495 - 2⁵ = 128719463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14347 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (10271718).

Almost surely, 2^128719495 is an apocalyptic number.

128719495 is a deficient number, since it is larger than the sum of its proper divisors (35627993).

128719495 is a wasteful number, since it uses less digits than its factorization.

128719495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410.

The product of its digits is 181440, while the sum is 46.

The square root of 128719495 is about 11345.4614273726. The cubic root of 128719495 is about 504.9109341994.

It can be divided in two parts, 12871 and 9495, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 128719495 in words is "one hundred twenty-eight million, seven hundred nineteen thousand, four hundred ninety-five".