23391061 has 2 divisors, whose sum is σ = 23391062. Its totient is φ = 23391060.

The previous prime is 23391047. The next prime is 23391079. The reversal of 23391061 is 16019332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 11350161 = 3470^2 + 3369^2 .

It is a cyclic number.

It is not a de Polignac number, because 23391061 - 2⁷ = 23390933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23391001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11695530 + 11695531.

It is an arithmetic number, because the mean of its divisors is an integer number (11695531).

Almost surely, 2^23391061 is an apocalyptic number.

It is an amenable number.

23391061 is a deficient number, since it is larger than the sum of its proper divisors (1).

23391061 is an equidigital number, since it uses as much as digits as its factorization.

23391061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 23391061 is about 4836.4306053121. The cubic root of 23391061 is about 285.9894245197.

The spelling of 23391061 in words is "twenty-three million, three hundred ninety-one thousand, sixty-one".