5135261 has 4 divisors (see below), whose sum is σ = 5140224. Its totient is φ = 5130300.

The previous prime is 5135257. The next prime is 5135281. The reversal of 5135261 is 1625315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1625315 = 5 ⋅325063.

It is a cyclic number.

It is not a de Polignac number, because 5135261 - 2² = 5135257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5135201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275 + ... + 3216.

It is an arithmetic number, because the mean of its divisors is an integer number (1285056).

Almost surely, 2^5135261 is an apocalyptic number.

It is an amenable number.

5135261 is a deficient number, since it is larger than the sum of its proper divisors (4963).

5135261 is a wasteful number, since it uses less digits than its factorization.

5135261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962.

The product of its digits is 900, while the sum is 23.

The square root of 5135261 is about 2266.1114270927. Note that the first 3 decimals coincide. The cubic root of 5135261 is about 172.5258492384.

The spelling of 5135261 in words is "five million, one hundred thirty-five thousand, two hundred sixty-one".