152121402135 has 32 divisors (see below), whose sum is σ = 270459000000. Its totient is φ = 81125129088.

The previous prime is 152121402127. The next prime is 152121402179. The reversal of 152121402135 is 531204121251.

It is a happy number.

152121402135 is a `hidden beast` number, since 1 + 5 + 2 + 121 + 402 + 135 = 666.

It is not a de Polignac number, because 152121402135 - 2³ = 152121402127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 152121402099 and 152121402108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2090341 + ... + 2161889.

It is an arithmetic number, because the mean of its divisors is an integer number (8451843750).

Almost surely, 2^152121402135 is an apocalyptic number.

152121402135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

152121402135 is a deficient number, since it is larger than the sum of its proper divisors (118337597865).

152121402135 is a wasteful number, since it uses less digits than its factorization.

152121402135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87312 (or 87306 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 152121402135 its reverse (531204121251), we get a palindrome (683325523386).

The spelling of 152121402135 in words is "one hundred fifty-two billion, one hundred twenty-one million, four hundred two thousand, one hundred thirty-five".