135420874 has 4 divisors (see below), whose sum is σ = 203131314. Its totient is φ = 67710436.

The previous prime is 135420863. The next prime is 135420881. The reversal of 135420874 is 478024531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 98903025 + 36517849 = 9945^2 + 6043^2 .

It is a super-2 number, since 2×135420874² = 36677626229847752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33855217 + ... + 33855220.

Almost surely, 2^135420874 is an apocalyptic number.

135420874 is a deficient number, since it is larger than the sum of its proper divisors (67710440).

135420874 is an equidigital number, since it uses as much as digits as its factorization.

135420874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67710439.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 135420874 is about 11637.0474777755. The cubic root of 135420874 is about 513.5253305339.

The spelling of 135420874 in words is "one hundred thirty-five million, four hundred twenty thousand, eight hundred seventy-four".