235669013 has 2 divisors, whose sum is σ = 235669014. Its totient is φ = 235669012.

The previous prime is 235668973. The next prime is 235669043. The reversal of 235669013 is 310966532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167391844 + 68277169 = 12938^2 + 8263^2 .

It is a cyclic number.

It is not a de Polignac number, because 235669013 - 2¹² = 235664917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235669043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117834506 + 117834507.

It is an arithmetic number, because the mean of its divisors is an integer number (117834507).

Almost surely, 2^235669013 is an apocalyptic number.

It is an amenable number.

235669013 is a deficient number, since it is larger than the sum of its proper divisors (1).

235669013 is an equidigital number, since it uses as much as digits as its factorization.

235669013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 235669013 is about 15351.5150066695. The cubic root of 235669013 is about 617.6856248862.

The spelling of 235669013 in words is "two hundred thirty-five million, six hundred sixty-nine thousand, thirteen".