135212470 has 16 divisors (see below), whose sum is σ = 243663840. Its totient is φ = 54022464.

The previous prime is 135212459. The next prime is 135212479. The reversal of 135212470 is 74212531.

It is a happy number.

135212470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135212479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834 + ... + 16546.

It is an arithmetic number, because the mean of its divisors is an integer number (15228990).

Almost surely, 2^135212470 is an apocalyptic number.

135212470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135212470 is a deficient number, since it is larger than the sum of its proper divisors (108451370).

135212470 is a wasteful number, since it uses less digits than its factorization.

135212470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15639.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 135212470 is about 11628.0896969365. The cubic root of 135212470 is about 513.2617678198.

Subtracting from 135212470 its product of nonzero digits (1680), we obtain a triangular number (135210790 = T₁₆₄₄₄).

The spelling of 135212470 in words is "one hundred thirty-five million, two hundred twelve thousand, four hundred seventy".