140604441469 has 2 divisors, whose sum is σ = 140604441470. Its totient is φ = 140604441468.

The previous prime is 140604441407. The next prime is 140604441473. The reversal of 140604441469 is 964144406041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128275004025 + 12329437444 = 358155^2 + 111038^2 .

It is a cyclic number.

It is not a de Polignac number, because 140604441469 - 2¹¹ = 140604439421 is a prime.

It is a super-2 number, since 2×140604441469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140604441499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70302220734 + 70302220735.

It is an arithmetic number, because the mean of its divisors is an integer number (70302220735).

Almost surely, 2^140604441469 is an apocalyptic number.

It is an amenable number.

140604441469 is a deficient number, since it is larger than the sum of its proper divisors (1).

140604441469 is an equidigital number, since it uses as much as digits as its factorization.

140604441469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 140604441469 in words is "one hundred forty billion, six hundred four million, four hundred forty-one thousand, four hundred sixty-nine".