1295026128 has 60 divisors (see below), whose sum is σ = 3953758848. Its totient is φ = 392431680.

The previous prime is 1295026127. The next prime is 1295026129. The reversal of 1295026128 is 8216205921.

1295026128 is a `hidden beast` number, since 1 + 29 + 502 + 6 + 128 = 666.

It is an interprime number because it is at equal distance from previous prime (1295026127) and next prime (1295026129).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1295026092 and 1295026101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295026127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407200 + ... + 410367.

Almost surely, 2^1295026128 is an apocalyptic number.

1295026128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1295026128 is an abundant number, since it is smaller than the sum of its proper divisors (2658732720).

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

1295026128 is a wasteful number, since it uses less digits than its factorization.

1295026128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817592 (or 817583 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1295026128 is about 35986.4714580354. The cubic root of 1295026128 is about 1089.9991942311. Note that the first 3 decimals are identical.

The spelling of 1295026128 in words is "one billion, two hundred ninety-five million, twenty-six thousand, one hundred twenty-eight".