61394415 has 32 divisors (see below), whose sum is σ = 106752000. Its totient is φ = 30015360.

The previous prime is 61394401. The next prime is 61394419. The reversal of 61394415 is 51449316.

It is not a de Polignac number, because 61394415 - 2⁶ = 61394351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61394419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5361 + ... + 12309.

It is an arithmetic number, because the mean of its divisors is an integer number (3336000).

Almost surely, 2^61394415 is an apocalyptic number.

61394415 is a deficient number, since it is larger than the sum of its proper divisors (45357585).

61394415 is a wasteful number, since it uses less digits than its factorization.

61394415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7007.

The product of its digits is 12960, while the sum is 33.

The square root of 61394415 is about 7835.4588251104. The cubic root of 61394415 is about 394.4963189653.

The spelling of 61394415 in words is "sixty-one million, three hundred ninety-four thousand, four hundred fifteen".