136729474 has 8 divisors (see below), whose sum is σ = 234393408. Its totient is φ = 58598340.

The previous prime is 136729447. The next prime is 136729507. The reversal of 136729474 is 474927631.

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

It is a self number, because there is not a number n which added to its sum of digits gives 136729474.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4883182 + ... + 4883209.

It is an arithmetic number, because the mean of its divisors is an integer number (29299176).

Almost surely, 2^136729474 is an apocalyptic number.

136729474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

136729474 is a deficient number, since it is larger than the sum of its proper divisors (97663934).

136729474 is an equidigital number, since it uses as much as digits as its factorization.

136729474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9766400.

The product of its digits is 254016, while the sum is 43.

The square root of 136729474 is about 11693.1379022057. The cubic root of 136729474 is about 515.1741315833.

The spelling of 136729474 in words is "one hundred thirty-six million, seven hundred twenty-nine thousand, four hundred seventy-four".