135514257 has 16 divisors (see below), whose sum is σ = 182212800. Its totient is φ = 89583552.

The previous prime is 135514231. The next prime is 135514261. The reversal of 135514257 is 752415531.

It is not a de Polignac number, because 135514257 - 2¹⁶ = 135448721 is a prime.

It is a super-2 number, since 2×135514257² = 36728227700524098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135514657) 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, 363123 + ... + 363495.

It is an arithmetic number, because the mean of its divisors is an integer number (11388300).

Almost surely, 2^135514257 is an apocalyptic number.

It is an amenable number.

135514257 is a deficient number, since it is larger than the sum of its proper divisors (46698543).

135514257 is a wasteful number, since it uses less digits than its factorization.

135514257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072.

The product of its digits is 21000, while the sum is 33.

The square root of 135514257 is about 11641.0591013017. The cubic root of 135514257 is about 513.6433416794.

Adding to 135514257 its reverse (752415531), we get a palindrome (887929788).

The spelling of 135514257 in words is "one hundred thirty-five million, five hundred fourteen thousand, two hundred fifty-seven".