135923974 has 16 divisors (see below), whose sum is σ = 213256800. Its totient is φ = 64852480.

The previous prime is 135923969. The next prime is 135923987. The reversal of 135923974 is 479329531.

It is a self number, because there is not a number n which added to its sum of digits gives 135923974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17364 + ... + 23944.

It is an arithmetic number, because the mean of its divisors is an integer number (13328550).

Almost surely, 2^135923974 is an apocalyptic number.

135923974 is a deficient number, since it is larger than the sum of its proper divisors (77332826).

135923974 is a wasteful number, since it uses less digits than its factorization.

135923974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7055.

The product of its digits is 204120, while the sum is 43.

The square root of 135923974 is about 11658.6437461653. The cubic root of 135923974 is about 514.1604746553.

The spelling of 135923974 in words is "one hundred thirty-five million, nine hundred twenty-three thousand, nine hundred seventy-four".