139774763 has 2 divisors, whose sum is σ = 139774764. Its totient is φ = 139774762.

The previous prime is 139774721. The next prime is 139774783. The reversal of 139774763 is 367477931.

It is a strong prime.

It is an emirp because it is prime and its reverse (367477931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139774763 - 2¹² = 139770667 is a prime.

It is not a weakly prime, because it can be changed into another prime (139774783) 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, 69887381 + 69887382.

It is an arithmetic number, because the mean of its divisors is an integer number (69887382).

Almost surely, 2^139774763 is an apocalyptic number.

139774763 is a deficient number, since it is larger than the sum of its proper divisors (1).

139774763 is an equidigital number, since it uses as much as digits as its factorization.

139774763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 666792, while the sum is 47.

The square root of 139774763 is about 11822.6377344483. The cubic root of 139774763 is about 518.9707983862.

The spelling of 139774763 in words is "one hundred thirty-nine million, seven hundred seventy-four thousand, seven hundred sixty-three".