140077477 has 2 divisors, whose sum is σ = 140077478. Its totient is φ = 140077476.

The previous prime is 140077471. The next prime is 140077489. The reversal of 140077477 is 774770041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133772356 + 6305121 = 11566^2 + 2511^2 .

It is an emirp because it is prime and its reverse (774770041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140077477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140077471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70038738 + 70038739.

It is an arithmetic number, because the mean of its divisors is an integer number (70038739).

Almost surely, 2^140077477 is an apocalyptic number.

It is an amenable number.

140077477 is a deficient number, since it is larger than the sum of its proper divisors (1).

140077477 is an equidigital number, since it uses as much as digits as its factorization.

140077477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38416, while the sum is 37.

The square root of 140077477 is about 11835.4331141703. The cubic root of 140077477 is about 519.3451779653.

The spelling of 140077477 in words is "one hundred forty million, seventy-seven thousand, four hundred seventy-seven".