54140434 has 4 divisors (see below), whose sum is σ = 81210654. Its totient is φ = 27070216.

The previous prime is 54140407. The next prime is 54140473. The reversal of 54140434 is 43404145.

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

It can be written as a sum of positive squares in only one way, i.e., 43230625 + 10909809 = 6575^2 + 3303^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54140399 and 54140408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13535107 + ... + 13535110.

Almost surely, 2^54140434 is an apocalyptic number.

54140434 is a deficient number, since it is larger than the sum of its proper divisors (27070220).

54140434 is a wasteful number, since it uses less digits than its factorization.

54140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27070219.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 54140434 is about 7358.0183473541. The cubic root of 54140434 is about 378.3036901397.

Adding to 54140434 its reverse (43404145), we get a palindrome (97544579).

The spelling of 54140434 in words is "fifty-four million, one hundred forty thousand, four hundred thirty-four".