2152281429 has 32 divisors (see below), whose sum is σ = 3379017600. Its totient is φ = 1351566720.

The previous prime is 2152281407. The next prime is 2152281431. The reversal of 2152281429 is 9241822512.

2152281429 is a `hidden beast` number, since 2 + 1 + 5 + 228 + 1 + 429 = 666.

It is not a de Polignac number, because 2152281429 - 2⁷ = 2152281301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2152281393 and 2152281402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152281499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1419 + ... + 65624.

It is an arithmetic number, because the mean of its divisors is an integer number (105594300).

Almost surely, 2^2152281429 is an apocalyptic number.

2152281429 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2152281429 is a deficient number, since it is larger than the sum of its proper divisors (1226736171).

2152281429 is a wasteful number, since it uses less digits than its factorization.

2152281429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67122 (or 67116 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 2152281429 is about 46392.6872362445. The cubic root of 2152281429 is about 1291.1192395609.

The spelling of 2152281429 in words is "two billion, one hundred fifty-two million, two hundred eighty-one thousand, four hundred twenty-nine".