135937919 has 8 divisors (see below), whose sum is σ = 149965872. Its totient is φ = 122420160.

The previous prime is 135937909. The next prime is 135937931. The reversal of 135937919 is 919739531.

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

It is a cyclic number.

It is not a de Polignac number, because 135937919 - 2⁴ = 135937903 is a prime.

It is a super-2 number, since 2×135937919² = 36958235644101122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135937909) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 126989 + ... + 128054.

It is an arithmetic number, because the mean of its divisors is an integer number (18745734).

Almost surely, 2^135937919 is an apocalyptic number.

135937919 is a deficient number, since it is larger than the sum of its proper divisors (14027953).

135937919 is a wasteful number, since it uses less digits than its factorization.

135937919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255097.

The product of its digits is 229635, while the sum is 47.

The square root of 135937919 is about 11659.2417849533. The cubic root of 135937919 is about 514.1780573339.

It can be divided in two parts, 13593 and 7919, that added together give a palindrome (21512).

The spelling of 135937919 in words is "one hundred thirty-five million, nine hundred thirty-seven thousand, nine hundred nineteen".