140175493 has 4 divisors (see below), whose sum is σ = 140292268. Its totient is φ = 140058720.

The previous prime is 140175443. The next prime is 140175517. The reversal of 140175493 is 394571041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394571041 = 1979 ⋅199379.

It can be written as a sum of positive squares in 2 ways, for example, as 4848804 + 135326689 = 2202^2 + 11633^2 .

It is a cyclic number.

It is not a de Polignac number, because 140175493 - 2²¹ = 138078341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140175443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56568 + ... + 58993.

It is an arithmetic number, because the mean of its divisors is an integer number (35073067).

Almost surely, 2^140175493 is an apocalyptic number.

It is an amenable number.

140175493 is a deficient number, since it is larger than the sum of its proper divisors (116775).

140175493 is a wasteful number, since it uses less digits than its factorization.

140175493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116774.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 140175493 is about 11839.5731764283. The cubic root of 140175493 is about 519.4662830129.

The spelling of 140175493 in words is "one hundred forty million, one hundred seventy-five thousand, four hundred ninety-three".