61451450 has 48 divisors (see below), whose sum is σ = 119590560. Its totient is φ = 23469120.

The previous prime is 61451449. The next prime is 61451479. The reversal of 61451450 is 5415416.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108869 + ... + 109431.

It is an arithmetic number, because the mean of its divisors is an integer number (2491470).

Almost surely, 2^61451450 is an apocalyptic number.

61451450 is a deficient number, since it is larger than the sum of its proper divisors (58139110).

61451450 is a wasteful number, since it uses less digits than its factorization.

61451450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 61451450 is about 7839.0975245879. The cubic root of 61451450 is about 394.6184426344.

Adding to 61451450 its reverse (5415416), we get a palindrome (66866866).

The spelling of 61451450 in words is "sixty-one million, four hundred fifty-one thousand, four hundred fifty".