140505454 has 8 divisors (see below), whose sum is σ = 217556928. Its totient is φ = 67986480.

The previous prime is 140505439. The next prime is 140505473. The reversal of 140505454 is 454505041.

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

It is a super-2 number, since 2×140505454² = 39483565207492232, 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133047 + ... + 1133170.

It is an arithmetic number, because the mean of its divisors is an integer number (27194616).

Almost surely, 2^140505454 is an apocalyptic number.

140505454 is a deficient number, since it is larger than the sum of its proper divisors (77051474).

140505454 is a wasteful number, since it uses less digits than its factorization.

140505454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266250.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 140505454 is about 11853.4996520015. The cubic root of 140505454 is about 519.8735565345.

The spelling of 140505454 in words is "one hundred forty million, five hundred five thousand, four hundred fifty-four".