61349019 has 8 divisors (see below), whose sum is σ = 83019840. Its totient is φ = 40288776.

The previous prime is 61349017. The next prime is 61349021. The reversal of 61349019 is 91094316.

61349019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61349017) and next prime (61349021).

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

It is not a de Polignac number, because 61349019 - 2¹ = 61349017 is a prime.

It is a super-2 number, since 2×61349019² = 7527404264524722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61349017) 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, 152409 + ... + 152810.

It is an arithmetic number, because the mean of its divisors is an integer number (10377480).

Almost surely, 2^61349019 is an apocalyptic number.

61349019 is a deficient number, since it is larger than the sum of its proper divisors (21670821).

61349019 is a wasteful number, since it uses less digits than its factorization.

61349019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305289.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 61349019 is about 7832.5614584247. The cubic root of 61349019 is about 394.3990627211.

The spelling of 61349019 in words is "sixty-one million, three hundred forty-nine thousand, nineteen".