61480431 has 16 divisors (see below), whose sum is σ = 91499520. Its totient is φ = 40799160.

The previous prime is 61480423. The next prime is 61480439. The reversal of 61480431 is 13408416.

61480431 is a `hidden beast` number, since 614 + 8 + 0 + 43 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (61480423) and next prime (61480439).

It is not a de Polignac number, because 61480431 - 2³ = 61480423 is a prime.

It is a super-2 number, since 2×61480431² = 7559686791891522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 61480395 and 61480404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61480439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916 + ... + 11126.

It is an arithmetic number, because the mean of its divisors is an integer number (5718720).

Almost surely, 2^61480431 is an apocalyptic number.

61480431 is a deficient number, since it is larger than the sum of its proper divisors (30019089).

61480431 is a wasteful number, since it uses less digits than its factorization.

61480431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443 (or 10437 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 61480431 is about 7840.9457975425. The cubic root of 61480431 is about 394.6804679662.

Adding to 61480431 its reverse (13408416), we get a palindrome (74888847).

The spelling of 61480431 in words is "sixty-one million, four hundred eighty thousand, four hundred thirty-one".