61445130 has 16 divisors (see below), whose sum is σ = 147468384. Its totient is φ = 16385360.

The previous prime is 61445077. The next prime is 61445143. The reversal of 61445130 is 3154416.

It is a self number, because there is not a number n which added to its sum of digits gives 61445130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024056 + ... + 1024115.

It is an arithmetic number, because the mean of its divisors is an integer number (9216774).

Almost surely, 2^61445130 is an apocalyptic number.

61445130 is an abundant number, since it is smaller than the sum of its proper divisors (86023254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61445130 is a wasteful number, since it uses less digits than its factorization.

61445130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048181.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 61445130 is about 7838.6944065960. The cubic root of 61445130 is about 394.6049139379.

Adding to 61445130 its reverse (3154416), we get a palindrome (64599546).

The spelling of 61445130 in words is "sixty-one million, four hundred forty-five thousand, one hundred thirty".