1461164555 has 4 divisors (see below), whose sum is σ = 1753397472. Its totient is φ = 1168931640.

The previous prime is 1461164513. The next prime is 1461164587. The reversal of 1461164555 is 5554611641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5554611641 = 8209 ⋅676649.

It is not a de Polignac number, because 1461164555 - 2⁶ = 1461164491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146116451 + ... + 146116460.

It is an arithmetic number, because the mean of its divisors is an integer number (438349368).

Almost surely, 2^1461164555 is an apocalyptic number.

1461164555 is a deficient number, since it is larger than the sum of its proper divisors (292232917).

1461164555 is an equidigital number, since it uses as much as digits as its factorization.

1461164555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292232916.

The product of its digits is 72000, while the sum is 38.

The square root of 1461164555 is about 38225.1822101609. The cubic root of 1461164555 is about 1134.7487408525.

The spelling of 1461164555 in words is "one billion, four hundred sixty-one million, one hundred sixty-four thousand, five hundred fifty-five".