154215423135 has 48 divisors (see below), whose sum is σ = 268765780608. Its totient is φ = 81800409600.

The previous prime is 154215423113. The next prime is 154215423191. The reversal of 154215423135 is 531324512451.

154215423135 is a `hidden beast` number, since 1 + 5 + 4 + 215 + 423 + 13 + 5 = 666.

It is not a de Polignac number, because 154215423135 - 2⁹ = 154215422623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154215423135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6829674 + ... + 6852216.

It is an arithmetic number, because the mean of its divisors is an integer number (5599287096).

Almost surely, 2^154215423135 is an apocalyptic number.

154215423135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

154215423135 is a deficient number, since it is larger than the sum of its proper divisors (114550357473).

154215423135 is a wasteful number, since it uses less digits than its factorization.

154215423135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23376 (or 23373 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 154215423135 its reverse (531324512451), we get a palindrome (685539935586).

The spelling of 154215423135 in words is "one hundred fifty-four billion, two hundred fifteen million, four hundred twenty-three thousand, one hundred thirty-five".