1235455153 has 2 divisors, whose sum is σ = 1235455154. Its totient is φ = 1235455152.

The previous prime is 1235455141. The next prime is 1235455157. The reversal of 1235455153 is 3515545321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231799409 + 3655744 = 35097^2 + 1912^2 .

It is an emirp because it is prime and its reverse (3515545321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1235455153 - 2²⁹ = 698584241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1235455157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617727576 + 617727577.

It is an arithmetic number, because the mean of its divisors is an integer number (617727577).

Almost surely, 2^1235455153 is an apocalyptic number.

It is an amenable number.

1235455153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235455153 is an equidigital number, since it uses as much as digits as its factorization.

1235455153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 34.

The square root of 1235455153 is about 35149.0419926347. The cubic root of 1235455153 is about 1073.0229110041.

The spelling of 1235455153 in words is "one billion, two hundred thirty-five million, four hundred fifty-five thousand, one hundred fifty-three".