61440154 has 8 divisors (see below), whose sum is σ = 95338260. Its totient is φ = 29660736.

The previous prime is 61440143. The next prime is 61440157. The reversal of 61440154 is 45104416.

It can be written as a sum of positive squares in 2 ways, for example, as 56025225 + 5414929 = 7485^2 + 2327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61440157) 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 in 3 ways as a sum of consecutive naturals, for example, 529599 + ... + 529714.

Almost surely, 2^61440154 is an apocalyptic number.

61440154 is a deficient number, since it is larger than the sum of its proper divisors (33898106).

61440154 is a wasteful number, since it uses less digits than its factorization.

61440154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059344.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 61440154 is about 7838.3770003745. The cubic root of 61440154 is about 394.5942615772.

The spelling of 61440154 in words is "sixty-one million, four hundred forty thousand, one hundred fifty-four".