61149403 has 6 divisors (see below), whose sum is σ = 71133036. Its totient is φ = 52413732.

The previous prime is 61149401. The next prime is 61149421. The reversal of 61149403 is 30494116.

61149403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61149403 - 2¹ = 61149401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61149401) 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 5 ways as a sum of consecutive naturals, for example, 623925 + ... + 624022.

It is an arithmetic number, because the mean of its divisors is an integer number (11855506).

Almost surely, 2^61149403 is an apocalyptic number.

61149403 is a deficient number, since it is larger than the sum of its proper divisors (9983633).

61149403 is a wasteful number, since it uses less digits than its factorization.

61149403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247961 (or 1247954 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61149403 is about 7819.8083736112. The cubic root of 61149403 is about 393.9708357913.

The spelling of 61149403 in words is "sixty-one million, one hundred forty-nine thousand, four hundred three".