1535142145550 has 48 divisors (see below), whose sum is σ = 3255890640912. Its totient is φ = 533479257600.

The previous prime is 1535142145549. The next prime is 1535142145561. The reversal of 1535142145550 is 555412415351.

It is a super-2 number, since 2×1535142145550² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1535142145498 and 1535142145507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69452396 + ... + 69474495.

It is an arithmetic number, because the mean of its divisors is an integer number (67831055019).

Almost surely, 2^{1535142145550} is an apocalyptic number.

1535142145550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1535142145550 is an abundant number, since it is smaller than the sum of its proper divisors (1720748495362).

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

1535142145550 is a wasteful number, since it uses less digits than its factorization.

1535142145550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138926933 (or 138926928 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 1535142145550 in words is "one trillion, five hundred thirty-five billion, one hundred forty-two million, one hundred forty-five thousand, five hundred fifty".