461240641 has 4 divisors (see below), whose sum is σ = 461284272. Its totient is φ = 461197012.

The previous prime is 461240629. The next prime is 461240653. The reversal of 461240641 is 146042164.

461240641 = T₁₇₅₃₄ + T₁₇₅₃₅ + T₁₇₅₃₆.

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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (461240629) and next prime (461240653).

It is a cyclic number.

It is not a de Polignac number, because 461240641 - 2¹¹ = 461238593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461240341) 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, 5166 + ... + 30808.

It is an arithmetic number, because the mean of its divisors is an integer number (115321068).

Almost surely, 2^461240641 is an apocalyptic number.

461240641 is the 17536-th centered triangular number.

It is an amenable number.

461240641 is a deficient number, since it is larger than the sum of its proper divisors (43631).

461240641 is a wasteful number, since it uses less digits than its factorization.

461240641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43630.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 461240641 is about 21476.5137068380. The cubic root of 461240641 is about 772.6376296014.

The spelling of 461240641 in words is "four hundred sixty-one million, two hundred forty thousand, six hundred forty-one".