61353451 has 16 divisors (see below), whose sum is σ = 66240000. Its totient is φ = 56651616.

The previous prime is 61353449. The next prime is 61353497. The reversal of 61353451 is 15435316.

It is not a de Polignac number, because 61353451 - 2¹ = 61353449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61353421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256590 + ... + 256828.

It is an arithmetic number, because the mean of its divisors is an integer number (4140000).

Almost surely, 2^61353451 is an apocalyptic number.

61353451 is a deficient number, since it is larger than the sum of its proper divisors (4886549).

61353451 is a wasteful number, since it uses less digits than its factorization.

61353451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

The product of its digits is 5400, while the sum is 28.

The square root of 61353451 is about 7832.8443748105. The cubic root of 61353451 is about 394.4085599365.

Adding to 61353451 its reverse (15435316), we get a palindrome (76788767).

The spelling of 61353451 in words is "sixty-one million, three hundred fifty-three thousand, four hundred fifty-one".