61140313 has 16 divisors (see below), whose sum is σ = 70171920. Its totient is φ = 53084928.

The previous prime is 61140311. The next prime is 61140341. The reversal of 61140313 is 31304116.

It can be written as a sum of positive squares in 8 ways, for example, as 50296464 + 10843849 = 7092^2 + 3293^2 .

It is not a de Polignac number, because 61140313 - 2¹ = 61140311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61140311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36531 + ... + 38167.

It is an arithmetic number, because the mean of its divisors is an integer number (4385745).

Almost surely, 2^61140313 is an apocalyptic number.

It is an amenable number.

61140313 is a deficient number, since it is larger than the sum of its proper divisors (9031607).

61140313 is a wasteful number, since it uses less digits than its factorization.

61140313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 61140313 is about 7819.2271357213. The cubic root of 61140313 is about 393.9513132656.

Adding to 61140313 its reverse (31304116), we get a palindrome (92444429).

The spelling of 61140313 in words is "sixty-one million, one hundred forty thousand, three hundred thirteen".