61430465 has 8 divisors (see below), whose sum is σ = 74212200. Its totient is φ = 48813952.

The previous prime is 61430461. The next prime is 61430521. The reversal of 61430465 is 56403416.

It is a happy number.

61430465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 152881 + 61277584 = 391^2 + 7828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61430465 - 2² = 61430461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61430461) 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 7 ways as a sum of consecutive naturals, for example, 40484 + ... + 41973.

It is an arithmetic number, because the mean of its divisors is an integer number (9276525).

Almost surely, 2^61430465 is an apocalyptic number.

It is an amenable number.

61430465 is a deficient number, since it is larger than the sum of its proper divisors (12781735).

61430465 is a wasteful number, since it uses less digits than its factorization.

61430465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82611.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 61430465 is about 7837.7589271424. The cubic root of 61430465 is about 394.5735182221.

The spelling of 61430465 in words is "sixty-one million, four hundred thirty thousand, four hundred sixty-five".