140515355429 has 2 divisors, whose sum is σ = 140515355430. Its totient is φ = 140515355428.

The previous prime is 140515355419. The next prime is 140515355479. The reversal of 140515355429 is 924553515041.

140515355429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111512584225 + 29002771204 = 333935^2 + 170302^2 .

It is a cyclic number.

It is not a de Polignac number, because 140515355429 - 2²⁸ = 140246919973 is a prime.

It is a super-2 number, since 2×140515355429² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140515355429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140515355419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70257677714 + 70257677715.

It is an arithmetic number, because the mean of its divisors is an integer number (70257677715).

Almost surely, 2^140515355429 is an apocalyptic number.

It is an amenable number.

140515355429 is a deficient number, since it is larger than the sum of its proper divisors (1).

140515355429 is an equidigital number, since it uses as much as digits as its factorization.

140515355429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 140515355429 in words is "one hundred forty billion, five hundred fifteen million, three hundred fifty-five thousand, four hundred twenty-nine".