140634429169 has 8 divisors (see below), whose sum is σ = 151635166760. Its totient is φ = 129659792256.

The previous prime is 140634429149. The next prime is 140634429181. The reversal of 140634429169 is 961924436041.

It can be written as a sum of positive squares in 4 ways, for example, as 20978625600 + 119655803569 = 144840^2 + 345913^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140634429169 - 2¹³ = 140634420977 is a prime.

It is a super-2 number, since 2×140634429169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140634429149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6513972 + ... + 6535525.

It is an arithmetic number, because the mean of its divisors is an integer number (18954395845).

Almost surely, 2^140634429169 is an apocalyptic number.

It is an amenable number.

140634429169 is a deficient number, since it is larger than the sum of its proper divisors (11000737591).

140634429169 is a wasteful number, since it uses less digits than its factorization.

140634429169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13050339.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 140634429169 in words is "one hundred forty billion, six hundred thirty-four million, four hundred twenty-nine thousand, one hundred sixty-nine".