1146555653 has 4 divisors (see below), whose sum is σ = 1147063680. Its totient is φ = 1146047628.

The previous prime is 1146555581. The next prime is 1146555689. The reversal of 1146555653 is 3565556411.

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 not a de Polignac number, because 1146555653 - 2¹² = 1146551557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1146555653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146555853) 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, 250613 + ... + 255146.

It is an arithmetic number, because the mean of its divisors is an integer number (286765920).

Almost surely, 2^1146555653 is an apocalyptic number.

It is an amenable number.

1146555653 is a deficient number, since it is larger than the sum of its proper divisors (508027).

1146555653 is an equidigital number, since it uses as much as digits as its factorization.

1146555653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508026.

The product of its digits is 270000, while the sum is 41.

The square root of 1146555653 is about 33860.8277069537. The cubic root of 1146555653 is about 1046.6425343109.

The spelling of 1146555653 in words is "one billion, one hundred forty-six million, five hundred fifty-five thousand, six hundred fifty-three".