135990057 has 8 divisors (see below), whose sum is σ = 207222976. Its totient is φ = 77708592.

The previous prime is 135990031. The next prime is 135990061. The reversal of 135990057 is 750099531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135990057 - 2¹² = 135985961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135989997 and 135990024.

It is not an unprimeable number, because it can be changed into a prime (135990017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3237838 + ... + 3237879.

It is an arithmetic number, because the mean of its divisors is an integer number (25902872).

Almost surely, 2^135990057 is an apocalyptic number.

It is an amenable number.

135990057 is a deficient number, since it is larger than the sum of its proper divisors (71232919).

135990057 is an equidigital number, since it uses as much as digits as its factorization.

135990057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6475727.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 135990057 is about 11661.4774792905. The cubic root of 135990057 is about 514.2437853493.

The spelling of 135990057 in words is "one hundred thirty-five million, nine hundred ninety thousand, fifty-seven".