139354419 has 4 divisors (see below), whose sum is σ = 185805896. Its totient is φ = 92902944.

The previous prime is 139354409. The next prime is 139354489. The reversal of 139354419 is 914453931.

It is a happy number.

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

It is not a de Polignac number, because 139354419 - 2⁷ = 139354291 is a prime.

It is a super-2 number, since 2×139354419² = 38839308189655122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139354409) 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, 23225734 + ... + 23225739.

It is an arithmetic number, because the mean of its divisors is an integer number (46451474).

Almost surely, 2^139354419 is an apocalyptic number.

139354419 is a deficient number, since it is larger than the sum of its proper divisors (46451477).

139354419 is an equidigital number, since it uses as much as digits as its factorization.

139354419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46451476.

The product of its digits is 58320, while the sum is 39.

The square root of 139354419 is about 11804.8472671187. The cubic root of 139354419 is about 518.4500431859.

The spelling of 139354419 in words is "one hundred thirty-nine million, three hundred fifty-four thousand, four hundred nineteen".