61431461 has 8 divisors (see below), whose sum is σ = 75608064. Its totient is φ = 48605040.

The previous prime is 61431373. The next prime is 61431479. The reversal of 61431461 is 16413416.

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 61431461 - 2²² = 57237157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61431461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61431661) 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, 337445 + ... + 337626.

It is an arithmetic number, because the mean of its divisors is an integer number (9451008).

Almost surely, 2^61431461 is an apocalyptic number.

It is an amenable number.

61431461 is a deficient number, since it is larger than the sum of its proper divisors (14176603).

61431461 is a wasteful number, since it uses less digits than its factorization.

61431461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675091.

The product of its digits is 1728, while the sum is 26.

The square root of 61431461 is about 7837.8224654556. The cubic root of 61431461 is about 394.5756506771.

Adding to 61431461 its reverse (16413416), we get a palindrome (77844877).

The spelling of 61431461 in words is "sixty-one million, four hundred thirty-one thousand, four hundred sixty-one".