139413667 has 4 divisors (see below), whose sum is σ = 141494536. Its totient is φ = 137332800.

The previous prime is 139413661. The next prime is 139413671. The reversal of 139413667 is 766314931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139413667 - 2⁷ = 139413539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139413661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040334 + ... + 1040467.

It is an arithmetic number, because the mean of its divisors is an integer number (35373634).

Almost surely, 2^139413667 is an apocalyptic number.

139413667 is a deficient number, since it is larger than the sum of its proper divisors (2080869).

139413667 is an equidigital number, since it uses as much as digits as its factorization.

139413667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080868.

The product of its digits is 81648, while the sum is 40.

The square root of 139413667 is about 11807.3564780606. The cubic root of 139413667 is about 518.5235076089.

The spelling of 139413667 in words is "one hundred thirty-nine million, four hundred thirteen thousand, six hundred sixty-seven".