140420511436 has 12 divisors (see below), whose sum is σ = 250372421712. Its totient is φ = 68885533808.

The previous prime is 140420511433. The next prime is 140420511437. The reversal of 140420511436 is 634115024041.

It is a junction number, because it is equal to n+sod(n) for n = 140420511398 and 140420511407.

It is not an unprimeable number, because it can be changed into a prime (140420511433) 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, 331180240 + ... + 331180663.

It is an arithmetic number, because the mean of its divisors is an integer number (20864368476).

Almost surely, 2^140420511436 is an apocalyptic number.

It is an amenable number.

140420511436 is a deficient number, since it is larger than the sum of its proper divisors (109951910276).

140420511436 is a wasteful number, since it uses less digits than its factorization.

140420511436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662360960 (or 662360958 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 140420511436 its reverse (634115024041), we get a palindrome (774535535477).

The spelling of 140420511436 in words is "one hundred forty billion, four hundred twenty million, five hundred eleven thousand, four hundred thirty-six".