135471657 has 16 divisors (see below), whose sum is σ = 194866560. Its totient is φ = 83396352.

The previous prime is 135471647. The next prime is 135471659. The reversal of 135471657 is 756174531.

It is not a de Polignac number, because 135471657 - 2⁶ = 135471593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135471659) 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, 22357 + ... + 27762.

It is an arithmetic number, because the mean of its divisors is an integer number (12179160).

Almost surely, 2^135471657 is an apocalyptic number.

135471657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

135471657 is a deficient number, since it is larger than the sum of its proper divisors (59394903).

135471657 is a wasteful number, since it uses less digits than its factorization.

135471657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50192.

The product of its digits is 88200, while the sum is 39.

The square root of 135471657 is about 11639.2292270579. The cubic root of 135471657 is about 513.5895133958.

The spelling of 135471657 in words is "one hundred thirty-five million, four hundred seventy-one thousand, six hundred fifty-seven".