461155537 has 2 divisors, whose sum is σ = 461155538. Its totient is φ = 461155536.

The previous prime is 461155529. The next prime is 461155559. The reversal of 461155537 is 735551164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350400961 + 110754576 = 18719^2 + 10524^2 .

It is a cyclic number.

It is not a de Polignac number, because 461155537 - 2³ = 461155529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 461155496 and 461155505.

It is not a weakly prime, because it can be changed into another prime (461155507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230577768 + 230577769.

It is an arithmetic number, because the mean of its divisors is an integer number (230577769).

Almost surely, 2^461155537 is an apocalyptic number.

It is an amenable number.

461155537 is a deficient number, since it is larger than the sum of its proper divisors (1).

461155537 is an equidigital number, since it uses as much as digits as its factorization.

461155537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 37.

The square root of 461155537 is about 21474.5322882711. The cubic root of 461155537 is about 772.5901066156.

The spelling of 461155537 in words is "four hundred sixty-one million, one hundred fifty-five thousand, five hundred thirty-seven".