61451376 has 80 divisors (see below), whose sum is σ = 186369024. Its totient is φ = 17079552.

The previous prime is 61451353. The next prime is 61451387. The reversal of 61451376 is 67315416.

61451376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61451376² = 7552543224586752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 9961 + ... + 14903.

Almost surely, 2^61451376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61451376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93184512).

61451376 is an abundant number, since it is smaller than the sum of its proper divisors (124917648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61451376 is a wasteful number, since it uses less digits than its factorization.

61451376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4998 (or 4992 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 61451376 is about 7839.0928046554. The cubic root of 61451376 is about 394.6182842342.

The spelling of 61451376 in words is "sixty-one million, four hundred fifty-one thousand, three hundred seventy-six".