12153651442 has 8 divisors (see below), whose sum is σ = 18723192876. Its totient is φ = 5912587152.

The previous prime is 12153651403. The next prime is 12153651491. The reversal of 12153651442 is 24415635121.

It can be written as a sum of positive squares in 2 ways, for example, as 10008201681 + 2145449761 = 100041^2 + 46319^2 .

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

It is a super-2 number, since 2×12153651442² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12153651398 and 12153651407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82119193 + ... + 82119340.

Almost surely, 2^12153651442 is an apocalyptic number.

12153651442 is a deficient number, since it is larger than the sum of its proper divisors (6569541434).

12153651442 is a wasteful number, since it uses less digits than its factorization.

12153651442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164238572.

The product of its digits is 28800, while the sum is 34.

The spelling of 12153651442 in words is "twelve billion, one hundred fifty-three million, six hundred fifty-one thousand, four hundred forty-two".