128751214 has 4 divisors (see below), whose sum is σ = 193126824. Its totient is φ = 64375606.

The previous prime is 128751197. The next prime is 128751221. The reversal of 128751214 is 412157821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412157821 = 1709 ⋅241169.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32187802 + ... + 32187805.

It is an arithmetic number, because the mean of its divisors is an integer number (48281706).

Almost surely, 2^128751214 is an apocalyptic number.

128751214 is a deficient number, since it is larger than the sum of its proper divisors (64375610).

128751214 is an equidigital number, since it uses as much as digits as its factorization.

128751214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64375609.

The product of its digits is 4480, while the sum is 31.

The square root of 128751214 is about 11346.8592130157. The cubic root of 128751214 is about 504.9524041017.

The spelling of 128751214 in words is "one hundred twenty-eight million, seven hundred fifty-one thousand, two hundred fourteen".