135974029 has 4 divisors (see below), whose sum is σ = 140360320. Its totient is φ = 131587740.

The previous prime is 135974023. The next prime is 135974039. The reversal of 135974029 is 920479531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135974029 - 2⁵ = 135973997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135973982 and 135974000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135974023) 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, 2193099 + ... + 2193160.

It is an arithmetic number, because the mean of its divisors is an integer number (35090080).

Almost surely, 2^135974029 is an apocalyptic number.

It is an amenable number.

135974029 is a deficient number, since it is larger than the sum of its proper divisors (4386291).

135974029 is an equidigital number, since it uses as much as digits as its factorization.

135974029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386290.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 135974029 is about 11660.7902390876. The cubic root of 135974029 is about 514.2235813643.

The spelling of 135974029 in words is "one hundred thirty-five million, nine hundred seventy-four thousand, twenty-nine".