135151431 has 8 divisors (see below), whose sum is σ = 183602160. Its totient is φ = 88400832.

The previous prime is 135151399. The next prime is 135151439. The reversal of 135151431 is 134151531.

135151431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 135151431 - 2⁵ = 135151399 is a prime.

It is a super-2 number, since 2×135151431² = 36531818602695522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135151439) 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, 424846 + ... + 425163.

It is an arithmetic number, because the mean of its divisors is an integer number (22950270).

Almost surely, 2^135151431 is an apocalyptic number.

135151431 is a deficient number, since it is larger than the sum of its proper divisors (48450729).

135151431 is an equidigital number, since it uses as much as digits as its factorization.

135151431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850065.

The product of its digits is 900, while the sum is 24.

The square root of 135151431 is about 11625.4647649029. The cubic root of 135151431 is about 513.1845222311.

The spelling of 135151431 in words is "one hundred thirty-five million, one hundred fifty-one thousand, four hundred thirty-one".