140451473 has 2 divisors, whose sum is σ = 140451474. Its totient is φ = 140451472.

The previous prime is 140451469. The next prime is 140451481. The reversal of 140451473 is 374154041.

It is a happy number.

140451473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124032769 + 16418704 = 11137^2 + 4052^2 .

It is a cyclic number.

It is not a de Polignac number, because 140451473 - 2² = 140451469 is a prime.

It is not a weakly prime, because it can be changed into another prime (140451403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70225736 + 70225737.

It is an arithmetic number, because the mean of its divisors is an integer number (70225737).

Almost surely, 2^140451473 is an apocalyptic number.

It is an amenable number.

140451473 is a deficient number, since it is larger than the sum of its proper divisors (1).

140451473 is an equidigital number, since it uses as much as digits as its factorization.

140451473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 140451473 is about 11851.2224263997. Note that the first 3 decimals coincide. The cubic root of 140451473 is about 519.8069710075.

The spelling of 140451473 in words is "one hundred forty million, four hundred fifty-one thousand, four hundred seventy-three".