123235153 has 2 divisors, whose sum is σ = 123235154. Its totient is φ = 123235152.

The previous prime is 123235141. The next prime is 123235187. The reversal of 123235153 is 351532321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118875409 + 4359744 = 10903^2 + 2088^2 .

It is a cyclic number.

It is not a de Polignac number, because 123235153 - 2²¹ = 121138001 is a prime.

It is not a weakly prime, because it can be changed into another prime (123235103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61617576 + 61617577.

It is an arithmetic number, because the mean of its divisors is an integer number (61617577).

Almost surely, 2^123235153 is an apocalyptic number.

It is an amenable number.

123235153 is a deficient number, since it is larger than the sum of its proper divisors (1).

123235153 is an equidigital number, since it uses as much as digits as its factorization.

123235153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 123235153 is about 11101.1329601983. The cubic root of 123235153 is about 497.6357085399.

Adding to 123235153 its reverse (351532321), we get a palindrome (474767474).

The spelling of 123235153 in words is "one hundred twenty-three million, two hundred thirty-five thousand, one hundred fifty-three".