135489154 has 4 divisors (see below), whose sum is σ = 203233734. Its totient is φ = 67744576.

The previous prime is 135489149. The next prime is 135489157. The reversal of 135489154 is 451984531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451984531 = 1279 ⋅353389.

It can be written as a sum of positive squares in only one way, i.e., 129618225 + 5870929 = 11385^2 + 2423^2 .

It is not an unprimeable number, because it can be changed into a prime (135489157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33872287 + ... + 33872290.

Almost surely, 2^135489154 is an apocalyptic number.

135489154 is a deficient number, since it is larger than the sum of its proper divisors (67744580).

135489154 is an equidigital number, since it uses as much as digits as its factorization.

135489154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67744579.

The product of its digits is 86400, while the sum is 40.

The square root of 135489154 is about 11639.9808419086. The cubic root of 135489154 is about 513.6116235283.

The spelling of 135489154 in words is "one hundred thirty-five million, four hundred eighty-nine thousand, one hundred fifty-four".