61045251 has 8 divisors (see below), whose sum is σ = 83286720. Its totient is φ = 39750312.

The previous prime is 61045247. The next prime is 61045253. The reversal of 61045251 is 15254016.

61045251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61045251 - 2² = 61045247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61045253) 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, 236481 + ... + 236738.

It is an arithmetic number, because the mean of its divisors is an integer number (10410840).

Almost surely, 2^61045251 is an apocalyptic number.

61045251 is a deficient number, since it is larger than the sum of its proper divisors (22241469).

61045251 is a wasteful number, since it uses less digits than its factorization.

61045251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473265.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 61045251 is about 7813.1460372887. The cubic root of 61045251 is about 393.7470332858.

Adding to 61045251 its reverse (15254016), we get a palindrome (76299267).

The spelling of 61045251 in words is "sixty-one million, forty-five thousand, two hundred fifty-one".