140664454 has 16 divisors (see below), whose sum is σ = 247657248. Its totient is φ = 58655232.

The previous prime is 140664449. The next prime is 140664463. The reversal of 140664454 is 454466041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135259 + ... + 136294.

It is an arithmetic number, because the mean of its divisors is an integer number (15478578).

Almost surely, 2^140664454 is an apocalyptic number.

140664454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140664454 is a deficient number, since it is larger than the sum of its proper divisors (106992794).

140664454 is a wasteful number, since it uses less digits than its factorization.

140664454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271599.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 140664454 is about 11860.2046356713. The cubic root of 140664454 is about 520.0695838835.

The spelling of 140664454 in words is "one hundred forty million, six hundred sixty-four thousand, four hundred fifty-four".