135295831 has 4 divisors (see below), whose sum is σ = 147595464. Its totient is φ = 122996200.

The previous prime is 135295819. The next prime is 135295837. The reversal of 135295831 is 138592531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135295831 - 2⁷ = 135295703 is a prime.

It is a super-2 number, since 2×135295831² = 36609923771961122, which 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 (135295837) 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, 6149800 + ... + 6149821.

It is an arithmetic number, because the mean of its divisors is an integer number (36898866).

Almost surely, 2^135295831 is an apocalyptic number.

135295831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135295831 is a deficient number, since it is larger than the sum of its proper divisors (12299633).

135295831 is a wasteful number, since it uses less digits than its factorization.

135295831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12299632.

The product of its digits is 32400, while the sum is 37.

The square root of 135295831 is about 11631.6736113080. The cubic root of 135295831 is about 513.3672246228.

The spelling of 135295831 in words is "one hundred thirty-five million, two hundred ninety-five thousand, eight hundred thirty-one".