461551 has 4 divisors (see below), whose sum is σ = 463104. Its totient is φ = 460000.

The previous prime is 461521. The next prime is 461561. The reversal of 461551 is 155164.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461521) 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, 175 + ... + 976.

It is an arithmetic number, because the mean of its divisors is an integer number (115776).

2⁴⁶¹⁵⁵¹ is an apocalyptic number.

461551 is a deficient number, since it is larger than the sum of its proper divisors (1553).

461551 is a wasteful number, since it uses less digits than its factorization.

461551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552.

The product of its digits is 600, while the sum is 22.

The square root of 461551 is about 679.3754484819. The cubic root of 461551 is about 77.2810887880.

The spelling of 461551 in words is "four hundred sixty-one thousand, five hundred fifty-one".