461155577 has 8 divisors (see below), whose sum is σ = 474170760. Its totient is φ = 448224640.

The previous prime is 461155571. The next prime is 461155613. The reversal of 461155577 is 775551164.

It can be written as a sum of positive squares in 4 ways, for example, as 61795321 + 399360256 = 7861^2 + 19984^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 461155577 - 2⁴ = 461155561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461155571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9878 + ... + 31935.

It is an arithmetic number, because the mean of its divisors is an integer number (59271345).

Almost surely, 2^461155577 is an apocalyptic number.

It is an amenable number.

461155577 is a deficient number, since it is larger than the sum of its proper divisors (13015183).

461155577 is a wasteful number, since it uses less digits than its factorization.

461155577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42123.

The product of its digits is 147000, while the sum is 41.

The square root of 461155577 is about 21474.5332196069. The cubic root of 461155577 is about 772.5901289534.

The spelling of 461155577 in words is "four hundred sixty-one million, one hundred fifty-five thousand, five hundred seventy-seven".