61431063 has 8 divisors (see below), whose sum is σ = 84121968. Its totient is φ = 39847104.

The previous prime is 61431059. The next prime is 61431067. The reversal of 61431063 is 36013416.

It is an interprime number because it is at equal distance from previous prime (61431059) and next prime (61431067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61431063 - 2² = 61431059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61431067) 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, 276606 + ... + 276827.

It is an arithmetic number, because the mean of its divisors is an integer number (10515246).

Almost surely, 2^61431063 is an apocalyptic number.

61431063 is a deficient number, since it is larger than the sum of its proper divisors (22690905).

61431063 is a wasteful number, since it uses less digits than its factorization.

61431063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553473.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 61431063 is about 7837.7970757095. The cubic root of 61431063 is about 394.5747985543.

Adding to 61431063 its reverse (36013416), we get a palindrome (97444479).

The spelling of 61431063 in words is "sixty-one million, four hundred thirty-one thousand, sixty-three".