136447970 has 32 divisors (see below), whose sum is σ = 252817200. Its totient is φ = 52998400.

The previous prime is 136447939. The next prime is 136447973. The reversal of 136447970 is 79744631.

It can be written as a sum of positive squares in 8 ways, for example, as 131308681 + 5139289 = 11459^2 + 2267^2 .

It is not an unprimeable number, because it can be changed into a prime (136447973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52256 + ... + 54804.

Almost surely, 2^136447970 is an apocalyptic number.

136447970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136447970 is a deficient number, since it is larger than the sum of its proper divisors (116369230).

136447970 is a wasteful number, since it uses less digits than its factorization.

136447970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 136447970 is about 11681.0945548780. The cubic root of 136447970 is about 514.8203351042.

It can be divided in two parts, 1364 and 47970, that multiplied together give a triangular number (65431080 = T₁₁₄₃₉).

The spelling of 136447970 in words is "one hundred thirty-six million, four hundred forty-seven thousand, nine hundred seventy".