140420515245 has 32 divisors (see below), whose sum is σ = 225239543424. Its totient is φ = 74702284800.

The previous prime is 140420515243. The next prime is 140420515259. The reversal of 140420515245 is 542515024041.

It is a happy number.

It is not a de Polignac number, because 140420515245 - 2¹ = 140420515243 is a prime.

It is a super-2 number, since 2×140420515245² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140420515241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10049634 + ... + 10063596.

It is an arithmetic number, because the mean of its divisors is an integer number (7038735732).

Almost surely, 2^140420515245 is an apocalyptic number.

140420515245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140420515245 is a deficient number, since it is larger than the sum of its proper divisors (84819028179).

140420515245 is a wasteful number, since it uses less digits than its factorization.

140420515245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15613.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 140420515245 its reverse (542515024041), we get a palindrome (682935539286).

The spelling of 140420515245 in words is "one hundred forty billion, four hundred twenty million, five hundred fifteen thousand, two hundred forty-five".