1146820461 has 4 divisors (see below), whose sum is σ = 1529093952. Its totient is φ = 764546972.

The previous prime is 1146820453. The next prime is 1146820463. The reversal of 1146820461 is 1640286411.

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 1146820461 - 2³ = 1146820453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146820463) 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, 191136741 + ... + 191136746.

It is an arithmetic number, because the mean of its divisors is an integer number (382273488).

Almost surely, 2^1146820461 is an apocalyptic number.

It is an amenable number.

1146820461 is a deficient number, since it is larger than the sum of its proper divisors (382273491).

1146820461 is an equidigital number, since it uses as much as digits as its factorization.

1146820461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382273490.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1146820461 is about 33864.7377222975. The cubic root of 1146820461 is about 1046.7231054780.

The spelling of 1146820461 in words is "one billion, one hundred forty-six million, eight hundred twenty thousand, four hundred sixty-one".