136403154 has 12 divisors (see below), whose sum is σ = 295540206. Its totient is φ = 45467712.

The previous prime is 136403149. The next prime is 136403159. The reversal of 136403154 is 451304631.

136403154 is a `hidden beast` number, since 1 + 3 + 640 + 3 + 15 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (136403149) and next prime (136403159).

It can be written as a sum of positive squares in only one way, i.e., 113103225 + 23299929 = 10635^2 + 4827^2 .

It is a super-2 number, since 2×136403154² = 37211640842295432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136403159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3788959 + ... + 3788994.

Almost surely, 2^136403154 is an apocalyptic number.

136403154 is an abundant number, since it is smaller than the sum of its proper divisors (159137052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136403154 is a wasteful number, since it uses less digits than its factorization.

136403154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577961 (or 7577958 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 136403154 is about 11679.1760839539. The cubic root of 136403154 is about 514.7639651081.

Adding to 136403154 its reverse (451304631), we get a palindrome (587707785).

The spelling of 136403154 in words is "one hundred thirty-six million, four hundred three thousand, one hundred fifty-four".