140315420569 has 3 divisors (see below), whose sum is σ = 140315795157. Its totient is φ = 140315045982.

The previous prime is 140315420561. The next prime is 140315420647. The reversal of 140315420569 is 965024513041.

The square root of 140315420569 is 374587.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 965024513041 = 15451 ⋅62457091.

It is not a de Polignac number, because 140315420569 - 2³ = 140315420561 is a prime.

It is a super-2 number, since 2×140315420569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140315420561) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 187294 + ... + 561880.

It is an arithmetic number, because the mean of its divisors is an integer number (46771931719).

Almost surely, 2^140315420569 is an apocalyptic number.

140315420569 is the 374587-th square number.

140315420569 is the 187294-th centered octagonal number.

It is an amenable number.

140315420569 is a deficient number, since it is larger than the sum of its proper divisors (374588).

140315420569 is an frugal number, since it uses more digits than its factorization.

140315420569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749174 (or 374587 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 140315420569 in words is "one hundred forty billion, three hundred fifteen million, four hundred twenty thousand, five hundred sixty-nine".