140212232531 has 8 divisors (see below), whose sum is σ = 160258493184. Its totient is φ = 120169957320.

The previous prime is 140212232467. The next prime is 140212232551. The reversal of 140212232531 is 135232212041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140212232531 - 2⁶ = 140212232467 is a prime.

It is a super-2 number, since 2×140212232531² (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 140212232531.

It is not an unprimeable number, because it can be changed into a prime (140212232551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920585 + ... + 1062026.

It is an arithmetic number, because the mean of its divisors is an integer number (20032311648).

Almost surely, 2^140212232531 is an apocalyptic number.

140212232531 is a deficient number, since it is larger than the sum of its proper divisors (20046260653).

140212232531 is a wasteful number, since it uses less digits than its factorization.

140212232531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992721.

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

Adding to 140212232531 its reverse (135232212041), we get a palindrome (275444444572).

The spelling of 140212232531 in words is "one hundred forty billion, two hundred twelve million, two hundred thirty-two thousand, five hundred thirty-one".