461311261 has 8 divisors (see below), whose sum is σ = 469463904. Its totient is φ = 453220560.

The previous prime is 461311259. The next prime is 461311271. The reversal of 461311261 is 162113164.

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 461311261 - 2¹ = 461311259 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 (461311231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331 + ... + 30376.

It is an arithmetic number, because the mean of its divisors is an integer number (58682988).

Almost surely, 2^461311261 is an apocalyptic number.

It is an amenable number.

461311261 is a deficient number, since it is larger than the sum of its proper divisors (8152643).

461311261 is a wasteful number, since it uses less digits than its factorization.

461311261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30971.

The product of its digits is 864, while the sum is 25.

The square root of 461311261 is about 21478.1577655068. The cubic root of 461311261 is about 772.6770601286.

The spelling of 461311261 in words is "four hundred sixty-one million, three hundred eleven thousand, two hundred sixty-one".