61362013 has 4 divisors (see below), whose sum is σ = 61508188. Its totient is φ = 61215840.

The previous prime is 61362011. The next prime is 61362019. The reversal of 61362013 is 31026316.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9132484 + 52229529 = 3022^2 + 7227^2 .

It is a cyclic number.

It is not a de Polignac number, because 61362013 - 2¹ = 61362011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61362011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72456 + ... + 73297.

It is an arithmetic number, because the mean of its divisors is an integer number (15377047).

Almost surely, 2^61362013 is an apocalyptic number.

It is an amenable number.

61362013 is a deficient number, since it is larger than the sum of its proper divisors (146175).

61362013 is a wasteful number, since it uses less digits than its factorization.

61362013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146174.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 61362013 is about 7833.3909004977. The cubic root of 61362013 is about 394.4269059245.

Adding to 61362013 its reverse (31026316), we get a palindrome (92388329).

It can be divided in two parts, 613 and 62013, that added together give a palindrome (62626).

The spelling of 61362013 in words is "sixty-one million, three hundred sixty-two thousand, thirteen".