61048431 has 8 divisors (see below), whose sum is σ = 90442160. Its totient is φ = 40698936.

The previous prime is 61048399. The next prime is 61048447. The reversal of 61048431 is 13484016.

61048431 is a `hidden beast` number, since 610 + 4 + 8 + 43 + 1 = 666.

It is not a de Polignac number, because 61048431 - 2⁵ = 61048399 is a prime.

It is a super-2 number, since 2×61048431² = 7453821855123522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2261053 = 61048431 / (6 + 1 + 0 + 4 + 8 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61048395 and 61048404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61048231) 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, 1130500 + ... + 1130553.

It is an arithmetic number, because the mean of its divisors is an integer number (11305270).

Almost surely, 2^61048431 is an apocalyptic number.

61048431 is a deficient number, since it is larger than the sum of its proper divisors (29393729).

61048431 is a wasteful number, since it uses less digits than its factorization.

61048431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261062 (or 2261056 counting only the distinct ones).

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

The square root of 61048431 is about 7813.3495378103. The cubic root of 61048431 is about 393.7538702567.

It can be divided in two parts, 6104 and 8431, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 61048431 in words is "sixty-one million, forty-eight thousand, four hundred thirty-one".