135473091 has 16 divisors (see below), whose sum is σ = 199051776. Its totient is φ = 81428256.

The previous prime is 135473083. The next prime is 135473113. The reversal of 135473091 is 190374531.

It is not a de Polignac number, because 135473091 - 2³ = 135473083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135473081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38715 + ... + 42068.

It is an arithmetic number, because the mean of its divisors is an integer number (12440736).

Almost surely, 2^135473091 is an apocalyptic number.

135473091 is a deficient number, since it is larger than the sum of its proper divisors (63578685).

135473091 is a wasteful number, since it uses less digits than its factorization.

135473091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80842.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 135473091 is about 11639.2908289122. The cubic root of 135473091 is about 513.5913255455.

The spelling of 135473091 in words is "one hundred thirty-five million, four hundred seventy-three thousand, ninety-one".