61019494 has 16 divisors (see below), whose sum is σ = 99169488. Its totient is φ = 28046592.

The previous prime is 61019479. The next prime is 61019503. The reversal of 61019494 is 49491016.

61019494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

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, 19407 + ... + 22330.

It is an arithmetic number, because the mean of its divisors is an integer number (6198093).

Almost surely, 2^61019494 is an apocalyptic number.

61019494 is a deficient number, since it is larger than the sum of its proper divisors (38149994).

61019494 is a wasteful number, since it uses less digits than its factorization.

61019494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41799.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 61019494 is about 7811.4975516862. The cubic root of 61019494 is about 393.6916472190.

The spelling of 61019494 in words is "sixty-one million, nineteen thousand, four hundred ninety-four".