135951845 has 4 divisors (see below), whose sum is σ = 163142220. Its totient is φ = 108761472.

The previous prime is 135951841. The next prime is 135951857. The reversal of 135951845 is 548159531.

135951845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548159531 = 9043 ⋅60617.

It can be written as a sum of positive squares in 2 ways, for example, as 28912129 + 107039716 = 5377^2 + 10346^2 .

It is a cyclic number.

It is not a de Polignac number, because 135951845 - 2² = 135951841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135951841) 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, 13595180 + ... + 13595189.

It is an arithmetic number, because the mean of its divisors is an integer number (40785555).

Almost surely, 2^135951845 is an apocalyptic number.

It is an amenable number.

135951845 is a deficient number, since it is larger than the sum of its proper divisors (27190375).

135951845 is an equidigital number, since it uses as much as digits as its factorization.

135951845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27190374.

The product of its digits is 108000, while the sum is 41.

The square root of 135951845 is about 11659.8389783050. The cubic root of 135951845 is about 514.1956148562.

The spelling of 135951845 in words is "one hundred thirty-five million, nine hundred fifty-one thousand, eight hundred forty-five".