535148261 has 4 divisors (see below), whose sum is σ = 545245452. Its totient is φ = 525051072.

The previous prime is 535148209. The next prime is 535148297. The reversal of 535148261 is 162841535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162841535 = 5 ⋅32568307.

It can be written as a sum of positive squares in 2 ways, for example, as 134908225 + 400240036 = 11615^2 + 20006^2 .

It is not a de Polignac number, because 535148261 - 2¹⁸ = 534886117 is a prime.

It is a super-2 number, since 2×535148261² = 572767322502648242, 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 (535148461) 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, 5048516 + ... + 5048621.

It is an arithmetic number, because the mean of its divisors is an integer number (136311363).

Almost surely, 2^535148261 is an apocalyptic number.

It is an amenable number.

535148261 is a deficient number, since it is larger than the sum of its proper divisors (10097191).

535148261 is a wasteful number, since it uses less digits than its factorization.

535148261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097190.

The product of its digits is 28800, while the sum is 35.

The square root of 535148261 is about 23133.2717314261. The cubic root of 535148261 is about 811.8791209685.

Adding to 535148261 its reverse (162841535), we get a palindrome (697989796).

The spelling of 535148261 in words is "five hundred thirty-five million, one hundred forty-eight thousand, two hundred sixty-one".