140137525249 has 4 divisors (see below), whose sum is σ = 140386437936. Its totient is φ = 139888612564.

The previous prime is 140137525247. The next prime is 140137525279. The reversal of 140137525249 is 942525731041.

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: 942525731041 = 443 ⋅2127597587.

It is a cyclic number.

It is not a de Polignac number, because 140137525249 - 2¹ = 140137525247 is a prime.

It is a super-2 number, since 2×140137525249² (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 (140137525247) 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, 124455499 + ... + 124456624.

It is an arithmetic number, because the mean of its divisors is an integer number (35096609484).

Almost surely, 2^140137525249 is an apocalyptic number.

It is an amenable number.

140137525249 is a deficient number, since it is larger than the sum of its proper divisors (248912687).

140137525249 is an equidigital number, since it uses as much as digits as its factorization.

140137525249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248912686.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 140137525249 in words is "one hundred forty billion, one hundred thirty-seven million, five hundred twenty-five thousand, two hundred forty-nine".