139349467 has 2 divisors, whose sum is σ = 139349468. Its totient is φ = 139349466.

The previous prime is 139349423. The next prime is 139349471. The reversal of 139349467 is 764943931.

It is a strong prime.

It is an emirp because it is prime and its reverse (764943931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139349467 - 2⁷ = 139349339 is a prime.

It is equal to p_7877395 and since 139349467 and 7877395 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (139349167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69674733 + 69674734.

It is an arithmetic number, because the mean of its divisors is an integer number (69674734).

Almost surely, 2^139349467 is an apocalyptic number.

139349467 is a deficient number, since it is larger than the sum of its proper divisors (1).

139349467 is an equidigital number, since it uses as much as digits as its factorization.

139349467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 139349467 is about 11804.6375209068. The cubic root of 139349467 is about 518.4439020219.

The spelling of 139349467 in words is "one hundred thirty-nine million, three hundred forty-nine thousand, four hundred sixty-seven".