140312531535 has 32 divisors (see below), whose sum is σ = 248924067840. Its totient is φ = 66915062400.

The previous prime is 140312531509. The next prime is 140312531543. The reversal of 140312531535 is 535135213041.

It is not a de Polignac number, because 140312531535 - 2⁵ = 140312531503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 140312531496 and 140312531505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6960255 + ... + 6980384.

It is an arithmetic number, because the mean of its divisors is an integer number (7778877120).

Almost surely, 2^140312531535 is an apocalyptic number.

140312531535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140312531535 is a deficient number, since it is larger than the sum of its proper divisors (108611536305).

140312531535 is a wasteful number, since it uses less digits than its factorization.

140312531535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13940719.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 140312531535 its reverse (535135213041), we get a palindrome (675447744576).

The spelling of 140312531535 in words is "one hundred forty billion, three hundred twelve million, five hundred thirty-one thousand, five hundred thirty-five".