61238331 has 48 divisors (see below), whose sum is σ = 111541248. Its totient is φ = 31449600.

The previous prime is 61238323. The next prime is 61238339. The reversal of 61238331 is 13383216.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61238323) and next prime (61238339).

It is not a de Polignac number, because 61238331 - 2³ = 61238323 is a prime.

It is a super-2 number, since 2×61238331² = 7500266367331122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61238295 and 61238304.

It is not an unprimeable number, because it can be changed into a prime (61238339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66766 + ... + 67676.

It is an arithmetic number, because the mean of its divisors is an integer number (2323776).

Almost surely, 2^61238331 is an apocalyptic number.

61238331 is a deficient number, since it is larger than the sum of its proper divisors (50302917).

61238331 is a wasteful number, since it uses less digits than its factorization.

61238331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1029 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 61238331 is about 7825.4923806748. The cubic root of 61238331 is about 394.1617238292.

The spelling of 61238331 in words is "sixty-one million, two hundred thirty-eight thousand, three hundred thirty-one".