61435013 has 4 divisors (see below), whose sum is σ = 62009280. Its totient is φ = 60860748.

The previous prime is 61434979. The next prime is 61435043. The reversal of 61435013 is 31053416.

It is a happy number.

61435013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61435013 - 2¹² = 61430917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61435013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61435043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286973 + ... + 287186.

It is an arithmetic number, because the mean of its divisors is an integer number (15502320).

Almost surely, 2^61435013 is an apocalyptic number.

It is an amenable number.

61435013 is a deficient number, since it is larger than the sum of its proper divisors (574267).

61435013 is a wasteful number, since it uses less digits than its factorization.

61435013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574266.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 61435013 is about 7838.0490557281. The cubic root of 61435013 is about 394.5832553891.

Adding to 61435013 its reverse (31053416), we get a palindrome (92488429).

The spelling of 61435013 in words is "sixty-one million, four hundred thirty-five thousand, thirteen".