128454087 has 8 divisors (see below), whose sum is σ = 171682560. Its totient is φ = 85430840.

The previous prime is 128454083. The next prime is 128454089. The reversal of 128454087 is 780454821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128454087 - 2² = 128454083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128454083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49839 + ... + 52352.

It is an arithmetic number, because the mean of its divisors is an integer number (21460320).

Almost surely, 2^128454087 is an apocalyptic number.

128454087 is a deficient number, since it is larger than the sum of its proper divisors (43228473).

128454087 is a wasteful number, since it uses less digits than its factorization.

128454087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102613.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 128454087 is about 11333.7587322124. The cubic root of 128454087 is about 504.5636684632.

The spelling of 128454087 in words is "one hundred twenty-eight million, four hundred fifty-four thousand, eighty-seven".