153842643 has 12 divisors (see below), whose sum is σ = 223840968. Its totient is φ = 101812320.

The previous prime is 153842621. The next prime is 153842657. The reversal of 153842643 is 346248351.

153842643 is a `hidden beast` number, since 1 + 5 + 3 + 8 + 4 + 2 + 643 = 666.

It is not a de Polignac number, because 153842643 - 2²² = 149648339 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 153842598 and 153842607.

It is not an unprimeable number, because it can be changed into a prime (153842603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61153 + ... + 63618.

It is an arithmetic number, because the mean of its divisors is an integer number (18653414).

Almost surely, 2^153842643 is an apocalyptic number.

153842643 is a deficient number, since it is larger than the sum of its proper divisors (69998325).

153842643 is a wasteful number, since it uses less digits than its factorization.

153842643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124914 (or 124911 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 153842643 is about 12403.3319313804. The cubic root of 153842643 is about 535.8282138192.

The spelling of 153842643 in words is "one hundred fifty-three million, eight hundred forty-two thousand, six hundred forty-three".