128952741 has 8 divisors (see below), whose sum is σ = 172247904. Its totient is φ = 85813040.

The previous prime is 128952739. The next prime is 128952773. The reversal of 128952741 is 147259821.

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 128952741 - 2¹ = 128952739 is a prime.

It is a super-2 number, since 2×128952741² = 33257618822826162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128952741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128952731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36915 + ... + 40256.

It is an arithmetic number, because the mean of its divisors is an integer number (21530988).

Almost surely, 2^128952741 is an apocalyptic number.

It is an amenable number.

128952741 is a deficient number, since it is larger than the sum of its proper divisors (43295163).

128952741 is an equidigital number, since it uses as much as digits as its factorization.

128952741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77731.

The product of its digits is 40320, while the sum is 39.

The square root of 128952741 is about 11355.7360395529. The cubic root of 128952741 is about 505.2157245842.

The spelling of 128952741 in words is "one hundred twenty-eight million, nine hundred fifty-two thousand, seven hundred forty-one".