61319454 has 32 divisors (see below), whose sum is σ = 140507136. Its totient is φ = 17476320.

The previous prime is 61319437. The next prime is 61319483. The reversal of 61319454 is 45491316.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17779 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (4390848).

Almost surely, 2^61319454 is an apocalyptic number.

61319454 is an abundant number, since it is smaller than the sum of its proper divisors (79187682).

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

61319454 is a wasteful number, since it uses less digits than its factorization.

61319454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640.

The product of its digits is 12960, while the sum is 33.

The square root of 61319454 is about 7830.6739173586. The cubic root of 61319454 is about 394.3356969597.

The spelling of 61319454 in words is "sixty-one million, three hundred nineteen thousand, four hundred fifty-four".