140504606477 has 2 divisors, whose sum is σ = 140504606478. Its totient is φ = 140504606476.

The previous prime is 140504606419. The next prime is 140504606521. The reversal of 140504606477 is 774606405041.

It is an a-pointer prime, because the next prime (140504606521) can be obtained adding 140504606477 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134328847081 + 6175759396 = 366509^2 + 78586^2 .

It is a cyclic number.

It is not a de Polignac number, because 140504606477 - 2³⁰ = 139430864653 is a prime.

It is a super-3 number, since 3×140504606477³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140504606777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70252303238 + 70252303239.

It is an arithmetic number, because the mean of its divisors is an integer number (70252303239).

Almost surely, 2^140504606477 is an apocalyptic number.

It is an amenable number.

140504606477 is a deficient number, since it is larger than the sum of its proper divisors (1).

140504606477 is an equidigital number, since it uses as much as digits as its factorization.

140504606477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 140504606477 in words is "one hundred forty billion, five hundred four million, six hundred six thousand, four hundred seventy-seven".