136447379 has 8 divisors (see below), whose sum is σ = 147511440. Its totient is φ = 125771616.

The previous prime is 136447369. The next prime is 136447433. The reversal of 136447379 is 973744631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136447379 - 2¹² = 136443283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136447369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96344 + ... + 97749.

It is an arithmetic number, because the mean of its divisors is an integer number (18438930).

Almost surely, 2^136447379 is an apocalyptic number.

136447379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

136447379 is a deficient number, since it is larger than the sum of its proper divisors (11064061).

136447379 is a wasteful number, since it uses less digits than its factorization.

136447379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194149.

The product of its digits is 381024, while the sum is 44.

The square root of 136447379 is about 11681.0692575637. The cubic root of 136447379 is about 514.8195918190.

The spelling of 136447379 in words is "one hundred thirty-six million, four hundred forty-seven thousand, three hundred seventy-nine".