61430365 has 4 divisors (see below), whose sum is σ = 73716444. Its totient is φ = 49144288.

The previous prime is 61430353. The next prime is 61430417. The reversal of 61430365 is 56303416.

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 28494244 + 32936121 = 5338^2 + 5739^2 .

It is a cyclic number.

It is not a de Polignac number, because 61430365 - 2⁹ = 61429853 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6143032 + ... + 6143041.

It is an arithmetic number, because the mean of its divisors is an integer number (18429111).

Almost surely, 2^61430365 is an apocalyptic number.

It is an amenable number.

61430365 is a deficient number, since it is larger than the sum of its proper divisors (12286079).

61430365 is a wasteful number, since it uses less digits than its factorization.

61430365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12286078.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 61430365 is about 7837.7525477652. The cubic root of 61430365 is about 394.5733041190.

The spelling of 61430365 in words is "sixty-one million, four hundred thirty thousand, three hundred sixty-five".