61434131 has 4 divisors (see below), whose sum is σ = 67019064. Its totient is φ = 55849200.

The previous prime is 61434101. The next prime is 61434167. The reversal of 61434131 is 13143416.

61434131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61434131 - 2⁶ = 61434067 is a prime.

It is a super-2 number, since 2×61434131² = 7548304903450322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61434097 and 61434106.

It is not an unprimeable number, because it can be changed into a prime (61434101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2792450 + ... + 2792471.

It is an arithmetic number, because the mean of its divisors is an integer number (16754766).

Almost surely, 2^61434131 is an apocalyptic number.

61434131 is a deficient number, since it is larger than the sum of its proper divisors (5584933).

61434131 is a wasteful number, since it uses less digits than its factorization.

61434131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5584932.

The product of its digits is 864, while the sum is 23.

The square root of 61434131 is about 7837.9927915251. The cubic root of 61434131 is about 394.5813670842.

Adding to 61434131 its reverse (13143416), we get a palindrome (74577547).

The spelling of 61434131 in words is "sixty-one million, four hundred thirty-four thousand, one hundred thirty-one".