128030040252146 has 16 divisors (see below), whose sum is σ = 194203329482520. Its totient is φ = 63295600494720.

The previous prime is 128030040252131. The next prime is 128030040252161. The reversal of 128030040252146 is 641252040030821.

It is an interprime number because it is at equal distance from previous prime (128030040252131) and next prime (128030040252161).

It can be written as a sum of positive squares in 4 ways, for example, as 72186926771521 + 55843113480625 = 8496289^2 + 7472825^2 .

It is a super-2 number, since 2×128030040252146² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138904160 + ... + 139822836.

Almost surely, 2^{128030040252146} is an apocalyptic number.

128030040252146 is a deficient number, since it is larger than the sum of its proper divisors (66173289230374).

128030040252146 is an equidigital number, since it uses as much as digits as its factorization.

128030040252146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701709.

The product of its (nonzero) digits is 92160, while the sum is 38.

Adding to 128030040252146 its reverse (641252040030821), we get a palindrome (769282080282967).

The spelling of 128030040252146 in words is "one hundred twenty-eight trillion, thirty billion, forty million, two hundred fifty-two thousand, one hundred forty-six".