235164261 has 4 divisors (see below), whose sum is σ = 313552352. Its totient is φ = 156776172.

The previous prime is 235164253. The next prime is 235164269. The reversal of 235164261 is 162461532.

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.

It is an interprime number because it is at equal distance from previous prime (235164253) and next prime (235164269).

It is not a de Polignac number, because 235164261 - 2³ = 235164253 is a prime.

It is a super-2 number, since 2×235164261² = 110604459303352242, 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 (235164269) 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 3 ways as a sum of consecutive naturals, for example, 39194041 + ... + 39194046.

It is an arithmetic number, because the mean of its divisors is an integer number (78388088).

Almost surely, 2^235164261 is an apocalyptic number.

It is an amenable number.

235164261 is a deficient number, since it is larger than the sum of its proper divisors (78388091).

235164261 is an equidigital number, since it uses as much as digits as its factorization.

235164261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78388090.

The product of its digits is 8640, while the sum is 30.

The square root of 235164261 is about 15335.0663839450. The cubic root of 235164261 is about 617.2443267242.

The spelling of 235164261 in words is "two hundred thirty-five million, one hundred sixty-four thousand, two hundred sixty-one".