140230241531 has 4 divisors (see below), whose sum is σ = 140231052072. Its totient is φ = 140229430992.

The previous prime is 140230241479. The next prime is 140230241539. The reversal of 140230241531 is 135142032041.

It is a happy 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: 135142032041 = 181 ⋅746641061.

It is a cyclic number.

It is not a de Polignac number, because 140230241531 - 2⁶ = 140230241467 is a prime.

It is a super-2 number, since 2×140230241531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140230241531.

It is not an unprimeable number, because it can be changed into a prime (140230241539) 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, 29810 + ... + 530423.

It is an arithmetic number, because the mean of its divisors is an integer number (35057763018).

Almost surely, 2^140230241531 is an apocalyptic number.

140230241531 is a deficient number, since it is larger than the sum of its proper divisors (810541).

140230241531 is an equidigital number, since it uses as much as digits as its factorization.

140230241531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810540.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 140230241531 its reverse (135142032041), we get a palindrome (275372273572).

The spelling of 140230241531 in words is "one hundred forty billion, two hundred thirty million, two hundred forty-one thousand, five hundred thirty-one".