140521420302 has 32 divisors (see below), whose sum is σ = 292925368320. Its totient is φ = 44889392160.

The previous prime is 140521420253. The next prime is 140521420321. The reversal of 140521420302 is 203024125041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3648277 + ... + 3686592.

It is an arithmetic number, because the mean of its divisors is an integer number (9153917760).

Almost surely, 2^140521420302 is an apocalyptic number.

140521420302 is an abundant number, since it is smaller than the sum of its proper divisors (152403948018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140521420302 is a wasteful number, since it uses less digits than its factorization.

140521420302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335008.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 140521420302 its reverse (203024125041), we get a palindrome (343545545343).

It can be divided in two parts, 1405214 and 20302, that added together give a triangular number (1425516 = T₁₆₈₈).

The spelling of 140521420302 in words is "one hundred forty billion, five hundred twenty-one million, four hundred twenty thousand, three hundred two".