1235055061 has 4 divisors (see below), whose sum is σ = 1244780032. Its totient is φ = 1225330092.

The previous prime is 1235055001. The next prime is 1235055077. The reversal of 1235055061 is 1605505321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1235055061 is a prime.

It is a super-2 number, since 2×1235055061² = 3050722007403427442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235055001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862295 + ... + 4862548.

It is an arithmetic number, because the mean of its divisors is an integer number (311195008).

Almost surely, 2^1235055061 is an apocalyptic number.

It is an amenable number.

1235055061 is a deficient number, since it is larger than the sum of its proper divisors (9724971).

1235055061 is an equidigital number, since it uses as much as digits as its factorization.

1235055061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9724970.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1235055061 is about 35143.3501675637. The cubic root of 1235055061 is about 1072.9070686140.

The spelling of 1235055061 in words is "one billion, two hundred thirty-five million, fifty-five thousand, sixty-one".