140083445 has 4 divisors (see below), whose sum is σ = 168100140. Its totient is φ = 112066752.

The previous prime is 140083403. The next prime is 140083477. The reversal of 140083445 is 544380041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544380041 = 16451 ⋅33091.

It can be written as a sum of positive squares in 2 ways, for example, as 44063044 + 96020401 = 6638^2 + 9799^2 .

It is a cyclic number.

It is not a de Polignac number, because 140083445 - 2¹⁴ = 140067061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14008340 + ... + 14008349.

It is an arithmetic number, because the mean of its divisors is an integer number (42025035).

Almost surely, 2^140083445 is an apocalyptic number.

It is an amenable number.

140083445 is a deficient number, since it is larger than the sum of its proper divisors (28016695).

140083445 is an equidigital number, since it uses as much as digits as its factorization.

140083445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28016694.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 140083445 is about 11835.6852357605. The cubic root of 140083445 is about 519.3525534265.

The spelling of 140083445 in words is "one hundred forty million, eighty-three thousand, four hundred forty-five".