1555125135 has 16 divisors (see below), whose sum is σ = 2503469184. Its totient is φ = 824310432.

The previous prime is 1555125119. The next prime is 1555125161. The reversal of 1555125135 is 5315215551.

It is not a de Polignac number, because 1555125135 - 2⁴ = 1555125119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1555125096 and 1555125105.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 315577 + ... + 320466.

It is an arithmetic number, because the mean of its divisors is an integer number (156466824).

Almost surely, 2^1555125135 is an apocalyptic number.

1555125135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1555125135 is a deficient number, since it is larger than the sum of its proper divisors (948344049).

1555125135 is a wasteful number, since it uses less digits than its factorization.

1555125135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636214.

The product of its digits is 18750, while the sum is 33.

The square root of 1555125135 is about 39435.0749333636. The cubic root of 1555125135 is about 1158.5686703429.

The spelling of 1555125135 in words is "one billion, five hundred fifty-five million, one hundred twenty-five thousand, one hundred thirty-five".