240197623 has 2 divisors, whose sum is σ = 240197624. Its totient is φ = 240197622.

The previous prime is 240197567. The next prime is 240197627. The reversal of 240197623 is 326791042.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240197623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240197627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120098811 + 120098812.

It is an arithmetic number, because the mean of its divisors is an integer number (120098812).

Almost surely, 2^240197623 is an apocalyptic number.

240197623 is a deficient number, since it is larger than the sum of its proper divisors (1).

240197623 is an equidigital number, since it uses as much as digits as its factorization.

240197623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 240197623 is about 15498.3103272583. The cubic root of 240197623 is about 621.6170267856.

The spelling of 240197623 in words is "two hundred forty million, one hundred ninety-seven thousand, six hundred twenty-three".