135298091903 has 8 divisors (see below), whose sum is σ = 145951355088. Its totient is φ = 124679931264.

The previous prime is 135298091899. The next prime is 135298091909. The reversal of 135298091903 is 309190892531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135298091903 - 2² = 135298091899 is a prime.

It is a super-2 number, since 2×135298091903² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135298091909) 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, 8767625 + ... + 8783042.

It is an arithmetic number, because the mean of its divisors is an integer number (18243919386).

Almost surely, 2^135298091903 is an apocalyptic number.

135298091903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135298091903 is a deficient number, since it is larger than the sum of its proper divisors (10653263185).

135298091903 is a wasteful number, since it uses less digits than its factorization.

135298091903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17551273.

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 135298091903 in words is "one hundred thirty-five billion, two hundred ninety-eight million, ninety-one thousand, nine hundred three".