2154136535 has 8 divisors (see below), whose sum is σ = 2605318656. Its totient is φ = 1709739360.

The previous prime is 2154136531. The next prime is 2154136549. The reversal of 2154136535 is 5356314512.

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

It is not a de Polignac number, because 2154136535 - 2² = 2154136531 is a prime.

It is a super-2 number, since 2×2154136535² = 9280608422843612450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154136495 and 2154136504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154136531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695536 + ... + 1696805.

It is an arithmetic number, because the mean of its divisors is an integer number (325664832).

Almost surely, 2^2154136535 is an apocalyptic number.

2154136535 is a deficient number, since it is larger than the sum of its proper divisors (451182121).

2154136535 is a wasteful number, since it uses less digits than its factorization.

2154136535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392473.

The product of its digits is 54000, while the sum is 35.

The square root of 2154136535 is about 46412.6764472811. The cubic root of 2154136535 is about 1291.4900825176.

The spelling of 2154136535 in words is "two billion, one hundred fifty-four million, one hundred thirty-six thousand, five hundred thirty-five".