235072261 has 2 divisors, whose sum is σ = 235072262. Its totient is φ = 235072260.

The previous prime is 235072241. The next prime is 235072273. The reversal of 235072261 is 162270532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228916900 + 6155361 = 15130^2 + 2481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235072261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235072241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117536130 + 117536131.

It is an arithmetic number, because the mean of its divisors is an integer number (117536131).

Almost surely, 2^235072261 is an apocalyptic number.

It is an amenable number.

235072261 is a deficient number, since it is larger than the sum of its proper divisors (1).

235072261 is an equidigital number, since it uses as much as digits as its factorization.

235072261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 235072261 is about 15332.0664295456. The cubic root of 235072261 is about 617.1638242920.

The spelling of 235072261 in words is "two hundred thirty-five million, seventy-two thousand, two hundred sixty-one".