61456454 has 4 divisors (see below), whose sum is σ = 92184684. Its totient is φ = 30728226.

The previous prime is 61456441. The next prime is 61456459. The reversal of 61456454 is 45465416.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61456459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15364112 + ... + 15364115.

It is an arithmetic number, because the mean of its divisors is an integer number (23046171).

Almost surely, 2^61456454 is an apocalyptic number.

61456454 is a deficient number, since it is larger than the sum of its proper divisors (30728230).

61456454 is a wasteful number, since it uses less digits than its factorization.

61456454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30728229.

The product of its digits is 57600, while the sum is 35.

The square root of 61456454 is about 7839.4166874838. The cubic root of 61456454 is about 394.6291536217.

The spelling of 61456454 in words is "sixty-one million, four hundred fifty-six thousand, four hundred fifty-four".