61234031 has 4 divisors (see below), whose sum is σ = 61497072. Its totient is φ = 60970992.

The previous prime is 61233961. The next prime is 61234037. The reversal of 61234031 is 13043216.

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

It is a cyclic number.

It is not a de Polignac number, because 61234031 - 2¹⁸ = 60971887 is a prime.

It is a super-2 number, since 2×61234031² = 7499213105017922, 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 = 61233994 and 61234012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61234037) 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 3 ways as a sum of consecutive naturals, for example, 131171 + ... + 131636.

It is an arithmetic number, because the mean of its divisors is an integer number (15374268).

Almost surely, 2^61234031 is an apocalyptic number.

61234031 is a deficient number, since it is larger than the sum of its proper divisors (263041).

61234031 is a wasteful number, since it uses less digits than its factorization.

61234031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263040.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 61234031 is about 7825.2176327563. The cubic root of 61234031 is about 394.1524979350.

Adding to 61234031 its reverse (13043216), we get a palindrome (74277247).

It can be divided in two parts, 612 and 34031, that added together give a palindrome (34643).

The spelling of 61234031 in words is "sixty-one million, two hundred thirty-four thousand, thirty-one".