140045040461 has 4 divisors (see below), whose sum is σ = 141404701152. Its totient is φ = 138685379772.

The previous prime is 140045040407. The next prime is 140045040479. The reversal of 140045040461 is 164040540041.

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.

It is a cyclic number.

It is not a de Polignac number, because 140045040461 - 2⁶ = 140045040397 is a prime.

It is a super-2 number, since 2×140045040461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140045040491) 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, 679830191 + ... + 679830396.

It is an arithmetic number, because the mean of its divisors is an integer number (35351175288).

Almost surely, 2^140045040461 is an apocalyptic number.

It is an amenable number.

140045040461 is a deficient number, since it is larger than the sum of its proper divisors (1359660691).

140045040461 is a wasteful number, since it uses less digits than its factorization.

140045040461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359660690.

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

The spelling of 140045040461 in words is "one hundred forty billion, forty-five million, forty thousand, four hundred sixty-one".