61742031 has 16 divisors (see below), whose sum is σ = 89036640. Its totient is φ = 37831680.

The previous prime is 61742029. The next prime is 61742033. The reversal of 61742031 is 13024716.

It is an interprime number because it is at equal distance from previous prime (61742029) and next prime (61742033).

It is not a de Polignac number, because 61742031 - 2¹ = 61742029 is a prime.

It is a super-2 number, since 2×61742031² = 7624156784009922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61741992 and 61742010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61742033) 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, 6115 + ... + 12683.

It is an arithmetic number, because the mean of its divisors is an integer number (5564790).

Almost surely, 2^61742031 is an apocalyptic number.

61742031 is a deficient number, since it is larger than the sum of its proper divisors (27294609).

61742031 is a wasteful number, since it uses less digits than its factorization.

61742031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 61742031 is about 7857.6097510630. The cubic root of 61742031 is about 395.2394659695.

Adding to 61742031 its reverse (13024716), we get a palindrome (74766747).

The spelling of 61742031 in words is "sixty-one million, seven hundred forty-two thousand, thirty-one".