128542354 has 8 divisors (see below), whose sum is σ = 201196800. Its totient is φ = 61476756.

The previous prime is 128542319. The next prime is 128542369. The reversal of 128542354 is 453245821.

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

It is a super-2 number, since 2×128542354² = 33046273543722632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397154 + ... + 1397245.

It is an arithmetic number, because the mean of its divisors is an integer number (25149600).

Almost surely, 2^128542354 is an apocalyptic number.

128542354 is a deficient number, since it is larger than the sum of its proper divisors (72654446).

128542354 is a wasteful number, since it uses less digits than its factorization.

128542354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794424.

The product of its digits is 38400, while the sum is 34.

The square root of 128542354 is about 11337.6520496971. The cubic root of 128542354 is about 504.6792120146.

The spelling of 128542354 in words is "one hundred twenty-eight million, five hundred forty-two thousand, three hundred fifty-four".