140842454 has 4 divisors (see below), whose sum is σ = 211263684. Its totient is φ = 70421226.

The previous prime is 140842453. The next prime is 140842483. The reversal of 140842454 is 454248041.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140842454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140842453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35210612 + ... + 35210615.

It is an arithmetic number, because the mean of its divisors is an integer number (52815921).

Almost surely, 2^140842454 is an apocalyptic number.

140842454 is a deficient number, since it is larger than the sum of its proper divisors (70421230).

140842454 is an equidigital number, since it uses as much as digits as its factorization.

140842454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70421229.

The product of its (nonzero) digits is 20480, while the sum is 32.

The square root of 140842454 is about 11867.7063495858. The cubic root of 140842454 is about 520.2888607109.

The spelling of 140842454 in words is "one hundred forty million, eight hundred forty-two thousand, four hundred fifty-four".