135242450 has 36 divisors (see below), whose sum is σ = 292625802. Its totient is φ = 46368000.

The previous prime is 135242449. The next prime is 135242467. The reversal of 135242450 is 54242531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 60264169 + 74978281 = 7763^2 + 8659^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25151 + ... + 30050.

Almost surely, 2^135242450 is an apocalyptic number.

135242450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135242450 is an abundant number, since it is smaller than the sum of its proper divisors (157383352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135242450 is a wasteful number, since it uses less digits than its factorization.

135242450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55227 (or 55215 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 135242450 is about 11629.3787452297. The cubic root of 135242450 is about 513.2996993574.

Adding to 135242450 its reverse (54242531), we get a palindrome (189484981).

The spelling of 135242450 in words is "one hundred thirty-five million, two hundred forty-two thousand, four hundred fifty".