140031982587121 has 9 divisors (see below), whose sum is σ = 140820784696011. Its totient is φ = 139247574643464.

The previous prime is 140031982587109. The next prime is 140031982587131. The reversal of 140031982587121 is 121785289130041.

It is a happy number.

The square root of 140031982587121 is 11833511.

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

It can be written as a sum of positive squares in only one way, i.e., 93227502282721 + 46804480304400 = 9655439^2 + 6841380^2 .

It is not a de Polignac number, because 140031982587121 - 2²³ = 140031974198513 is a prime.

It is a super-2 number, since 2×140031982587121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140031982587131) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2118165415 + ... + 2118231523.

Almost surely, 2^{140031982587121} is an apocalyptic number.

140031982587121 is the 11833511-st square number.

140031982587121 is the 5916756-th centered octagonal number.

It is an amenable number.

140031982587121 is a deficient number, since it is larger than the sum of its proper divisors (788802108890).

140031982587121 is an frugal number, since it uses more digits than its factorization.

140031982587121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132576 (or 66288 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 52.

The spelling of 140031982587121 in words is "one hundred forty trillion, thirty-one billion, nine hundred eighty-two million, five hundred eighty-seven thousand, one hundred twenty-one".