1461113551 has 2 divisors, whose sum is σ = 1461113552. Its totient is φ = 1461113550.

The previous prime is 1461113543. The next prime is 1461113557. The reversal of 1461113551 is 1553111641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1461113551 - 2³ = 1461113543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461113557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730556775 + 730556776.

It is an arithmetic number, because the mean of its divisors is an integer number (730556776).

Almost surely, 2^1461113551 is an apocalyptic number.

1461113551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461113551 is an equidigital number, since it uses as much as digits as its factorization.

1461113551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 28.

The square root of 1461113551 is about 38224.5150525157. The cubic root of 1461113551 is about 1134.7355373663.

The spelling of 1461113551 in words is "one billion, four hundred sixty-one million, one hundred thirteen thousand, five hundred fifty-one".