140892797 has 4 divisors (see below), whose sum is σ = 141441276. Its totient is φ = 140344320.

The previous prime is 140892751. The next prime is 140892823. The reversal of 140892797 is 797298041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 797298041 = 179 ⋅4454179.

It can be written as a sum of positive squares in 2 ways, for example, as 93915481 + 46977316 = 9691^2 + 6854^2 .

It is a cyclic number.

It is not a de Polignac number, because 140892797 - 2⁸ = 140892541 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 (140892097) 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, 273854 + ... + 274367.

It is an arithmetic number, because the mean of its divisors is an integer number (35360319).

Almost surely, 2^140892797 is an apocalyptic number.

It is an amenable number.

140892797 is a deficient number, since it is larger than the sum of its proper divisors (548479).

140892797 is an equidigital number, since it uses as much as digits as its factorization.

140892797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548478.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 140892797 is about 11869.8271680762. The cubic root of 140892797 is about 520.3508443462.

The spelling of 140892797 in words is "one hundred forty million, eight hundred ninety-two thousand, seven hundred ninety-seven".