136757890 has 8 divisors (see below), whose sum is σ = 246164220. Its totient is φ = 54703152.

The previous prime is 136757869. The next prime is 136757891. The reversal of 136757890 is 98757631.

It can be written as a sum of positive squares in 2 ways, for example, as 128618281 + 8139609 = 11341^2 + 2853^2 .

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 136757890.

It is not an unprimeable number, because it can be changed into a prime (136757891) 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, 6837885 + ... + 6837904.

Almost surely, 2^136757890 is an apocalyptic number.

136757890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136757890 is a deficient number, since it is larger than the sum of its proper divisors (109406330).

136757890 is a wasteful number, since it uses less digits than its factorization.

136757890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13675796.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 136757890 is about 11694.3529107001. The cubic root of 136757890 is about 515.2098180467.

The spelling of 136757890 in words is "one hundred thirty-six million, seven hundred fifty-seven thousand, eight hundred ninety".