136400162 has 4 divisors (see below), whose sum is σ = 204600246. Its totient is φ = 68200080.

The previous prime is 136400161. The next prime is 136400179. The reversal of 136400162 is 261004631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 261004631 = 643 ⋅405917.

It can be written as a sum of positive squares in only one way, i.e., 93876721 + 42523441 = 9689^2 + 6521^2 .

It is not an unprimeable number, because it can be changed into a prime (136400161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34100039 + ... + 34100042.

Almost surely, 2^136400162 is an apocalyptic number.

136400162 is a deficient number, since it is larger than the sum of its proper divisors (68200084).

136400162 is an equidigital number, since it uses as much as digits as its factorization.

136400162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68200083.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 136400162 is about 11679.0479920240. The cubic root of 136400162 is about 514.7602013021.

Adding to 136400162 its reverse (261004631), we get a palindrome (397404793).

The spelling of 136400162 in words is "one hundred thirty-six million, four hundred thousand, one hundred sixty-two".