1063155601 has 4 divisors (see below), whose sum is σ = 1069678192. Its totient is φ = 1056633012.

The previous prime is 1063155563. The next prime is 1063155617. The reversal of 1063155601 is 1065513601.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1065513601 = 25171 ⋅42331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1063155601 is a prime.

It is a super-2 number, since 2×1063155601² = 2260599663875342402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1063155601.

It is not an unprimeable number, because it can be changed into a prime (1063155101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3261051 + ... + 3261376.

It is an arithmetic number, because the mean of its divisors is an integer number (267419548).

Almost surely, 2^1063155601 is an apocalyptic number.

It is an amenable number.

1063155601 is a deficient number, since it is larger than the sum of its proper divisors (6522591).

1063155601 is an equidigital number, since it uses as much as digits as its factorization.

1063155601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522590.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1063155601 is about 32606.0669354646. The cubic root of 1063155601 is about 1020.6236097516.

The spelling of 1063155601 in words is "one billion, sixty-three million, one hundred fifty-five thousand, six hundred one".