135953998 has 16 divisors (see below), whose sum is σ = 216303264. Its totient is φ = 63866880.

The previous prime is 135953969. The next prime is 135953999. The reversal of 135953998 is 899359531.

It is a happy number.

135953998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135953999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18286 + ... + 24622.

It is an arithmetic number, because the mean of its divisors is an integer number (13518954).

Almost surely, 2^135953998 is an apocalyptic number.

135953998 is a deficient number, since it is larger than the sum of its proper divisors (80349266).

135953998 is a wasteful number, since it uses less digits than its factorization.

135953998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987.

The product of its digits is 1312200, while the sum is 52.

The square root of 135953998 is about 11659.9313033997. The cubic root of 135953998 is about 514.1983291930.

The spelling of 135953998 in words is "one hundred thirty-five million, nine hundred fifty-three thousand, nine hundred ninety-eight".