140165498461 has 4 divisors (see below), whose sum is σ = 146259650592. Its totient is φ = 134071346332.

The previous prime is 140165498437. The next prime is 140165498489. The reversal of 140165498461 is 164894561041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164894561041 = 7 ⋅23556365863.

It is a cyclic number.

It is not a de Polignac number, because 140165498461 - 2¹⁷ = 140165367389 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 (140165496461) 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, 3047076031 + ... + 3047076076.

It is an arithmetic number, because the mean of its divisors is an integer number (36564912648).

Almost surely, 2^140165498461 is an apocalyptic number.

It is an amenable number.

140165498461 is a deficient number, since it is larger than the sum of its proper divisors (6094152131).

140165498461 is an equidigital number, since it uses as much as digits as its factorization.

140165498461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094152130.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 140165498461 in words is "one hundred forty billion, one hundred sixty-five million, four hundred ninety-eight thousand, four hundred sixty-one".