61228451 has 16 divisors (see below), whose sum is σ = 64941696. Its totient is φ = 57655296.

The previous prime is 61228429. The next prime is 61228459. The reversal of 61228451 is 15482216.

61228451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61228451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61228459) 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 15 ways as a sum of consecutive naturals, for example, 238115 + ... + 238371.

It is an arithmetic number, because the mean of its divisors is an integer number (4058856).

Almost surely, 2^61228451 is an apocalyptic number.

61228451 is a deficient number, since it is larger than the sum of its proper divisors (3713245).

61228451 is a wasteful number, since it uses less digits than its factorization.

61228451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478.

The product of its digits is 3840, while the sum is 29.

The square root of 61228451 is about 7824.8610850289. The cubic root of 61228451 is about 394.1405250842.

The spelling of 61228451 in words is "sixty-one million, two hundred twenty-eight thousand, four hundred fifty-one".