235240661 has 2 divisors, whose sum is σ = 235240662. Its totient is φ = 235240660.

The previous prime is 235240633. The next prime is 235240667. The reversal of 235240661 is 166042532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234396100 + 844561 = 15310^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 235240661 - 2⁶ = 235240597 is a prime.

It is a super-5 number, since 5×235240661⁵ (a number of 43 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235240667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117620330 + 117620331.

It is an arithmetic number, because the mean of its divisors is an integer number (117620331).

Almost surely, 2^235240661 is an apocalyptic number.

It is an amenable number.

235240661 is a deficient number, since it is larger than the sum of its proper divisors (1).

235240661 is an equidigital number, since it uses as much as digits as its factorization.

235240661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 235240661 is about 15337.5572044573. The cubic root of 235240661 is about 617.3111627880.

The spelling of 235240661 in words is "two hundred thirty-five million, two hundred forty thousand, six hundred sixty-one".