135257199 has 48 divisors (see below), whose sum is σ = 230480640. Its totient is φ = 69767040.

The previous prime is 135257197. The next prime is 135257207. The reversal of 135257199 is 991752531.

It is not a de Polignac number, because 135257199 - 2¹ = 135257197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135257199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135257197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 376582 + ... + 376940.

It is an arithmetic number, because the mean of its divisors is an integer number (4801680).

Almost surely, 2^135257199 is an apocalyptic number.

135257199 is a deficient number, since it is larger than the sum of its proper divisors (95223441).

135257199 is a wasteful number, since it uses less digits than its factorization.

135257199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 613 counting only the distinct ones).

The product of its digits is 85050, while the sum is 42.

The square root of 135257199 is about 11630.0128546791. The cubic root of 135257199 is about 513.3183581490.

The spelling of 135257199 in words is "one hundred thirty-five million, two hundred fifty-seven thousand, one hundred ninety-nine".