1235455141 has 2 divisors, whose sum is σ = 1235455142. Its totient is φ = 1235455140.

The previous prime is 1235455099. The next prime is 1235455153. The reversal of 1235455141 is 1415545321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 641558241 + 593896900 = 25329^2 + 24370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1235455141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235255141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617727570 + 617727571.

It is an arithmetic number, because the mean of its divisors is an integer number (617727571).

Almost surely, 2^1235455141 is an apocalyptic number.

It is an amenable number.

1235455141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235455141 is an equidigital number, since it uses as much as digits as its factorization.

1235455141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 31.

The square root of 1235455141 is about 35149.0418219331. The cubic root of 1235455141 is about 1073.0229075300.

The spelling of 1235455141 in words is "one billion, two hundred thirty-five million, four hundred fifty-five thousand, one hundred forty-one".