135801038 has 4 divisors (see below), whose sum is σ = 203701560. Its totient is φ = 67900518.

The previous prime is 135801023. The next prime is 135801053. The reversal of 135801038 is 830108531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 830108531 = 7 ⋅118586933.

It is an interprime number because it is at equal distance from previous prime (135801023) and next prime (135801053).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135801038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33950258 + ... + 33950261.

It is an arithmetic number, because the mean of its divisors is an integer number (50925390).

Almost surely, 2^135801038 is an apocalyptic number.

135801038 is a deficient number, since it is larger than the sum of its proper divisors (67900522).

135801038 is an equidigital number, since it uses as much as digits as its factorization.

135801038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67900521.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 135801038 is about 11653.3702421231. The cubic root of 135801038 is about 514.0054176378.

Adding to 135801038 its reverse (830108531), we get a palindrome (965909569).

The spelling of 135801038 in words is "one hundred thirty-five million, eight hundred one thousand, thirty-eight".