128147334 has 32 divisors (see below), whose sum is σ = 295059456. Its totient is φ = 36344640.

The previous prime is 128147321. The next prime is 128147363. The reversal of 128147334 is 433741821.

It is a super-2 number, since 2×128147334² = 32843478422615112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128147295 and 128147304.

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, 5382 + ... + 16889.

It is an arithmetic number, because the mean of its divisors is an integer number (9220608).

Almost surely, 2^128147334 is an apocalyptic number.

128147334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128147334 is an abundant number, since it is smaller than the sum of its proper divisors (166912122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128147334 is a wasteful number, since it uses less digits than its factorization.

128147334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22420.

The product of its digits is 16128, while the sum is 33.

The square root of 128147334 is about 11320.2179307644. The cubic root of 128147334 is about 504.1617095734.

The spelling of 128147334 in words is "one hundred twenty-eight million, one hundred forty-seven thousand, three hundred thirty-four".