136947842 has 16 divisors (see below), whose sum is σ = 216941760. Its totient is φ = 64705872.

The previous prime is 136947827. The next prime is 136947851. The reversal of 136947842 is 248749631.

It is a super-2 number, since 2×136947842² = 37509422856913928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136947793 and 136947802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14117 + ... + 21752.

It is an arithmetic number, because the mean of its divisors is an integer number (13558860).

Almost surely, 2^136947842 is an apocalyptic number.

136947842 is a deficient number, since it is larger than the sum of its proper divisors (79993918).

136947842 is a wasteful number, since it uses less digits than its factorization.

136947842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35977.

The product of its digits is 290304, while the sum is 44.

The square root of 136947842 is about 11702.4716192777. The cubic root of 136947842 is about 515.4482439243.

The spelling of 136947842 in words is "one hundred thirty-six million, nine hundred forty-seven thousand, eight hundred forty-two".