135021454 has 8 divisors (see below), whose sum is σ = 211338000. Its totient is φ = 64575456.

The previous prime is 135021451. The next prime is 135021499. The reversal of 135021454 is 454120531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135021451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1467579 + ... + 1467670.

It is an arithmetic number, because the mean of its divisors is an integer number (26417250).

Almost surely, 2^135021454 is an apocalyptic number.

135021454 is a deficient number, since it is larger than the sum of its proper divisors (76316546).

135021454 is a wasteful number, since it uses less digits than its factorization.

135021454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935274.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 135021454 is about 11619.8732351089. The cubic root of 135021454 is about 513.0199572480.

Adding to 135021454 its reverse (454120531), we get a palindrome (589141985).

The spelling of 135021454 in words is "one hundred thirty-five million, twenty-one thousand, four hundred fifty-four".