610642461 has 48 divisors (see below), whose sum is σ = 968067072. Its totient is φ = 339393600.

The previous prime is 610642453. The next prime is 610642477. The reversal of 610642461 is 164246016.

It is not a de Polignac number, because 610642461 - 2³ = 610642453 is a prime.

It is a super-2 number, since 2×610642461² = 745768430352273042, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610642421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1243426 + ... + 1243916.

It is an arithmetic number, because the mean of its divisors is an integer number (20168064).

Almost surely, 2^610642461 is an apocalyptic number.

It is an amenable number.

610642461 is a deficient number, since it is larger than the sum of its proper divisors (357424611).

610642461 is a wasteful number, since it uses less digits than its factorization.

610642461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 610642461 is about 24711.1808904390. The cubic root of 610642461 is about 848.3902455976.

Adding to 610642461 its reverse (164246016), we get a palindrome (774888477).

The spelling of 610642461 in words is "six hundred ten million, six hundred forty-two thousand, four hundred sixty-one".