61049091 has 8 divisors (see below), whose sum is σ = 86187024. Its totient is φ = 38305280.

The previous prime is 61049083. The next prime is 61049111. The reversal of 61049091 is 19094016.

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 61049091 - 2³ = 61049083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61049081) by changing a digit.

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, 598470 + ... + 598571.

It is an arithmetic number, because the mean of its divisors is an integer number (10773378).

Almost surely, 2^61049091 is an apocalyptic number.

61049091 is a deficient number, since it is larger than the sum of its proper divisors (25137933).

61049091 is a wasteful number, since it uses less digits than its factorization.

61049091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197061.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 61049091 is about 7813.3917731034. The cubic root of 61049091 is about 393.7552892210.

The spelling of 61049091 in words is "sixty-one million, forty-nine thousand, ninety-one".