153948643 has 8 divisors (see below), whose sum is σ = 159526400. Its totient is φ = 148461768.

The previous prime is 153948629. The next prime is 153948653. The reversal of 153948643 is 346849351.

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

It is a cyclic number.

It is not a de Polignac number, because 153948643 - 2⁵ = 153948611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153948643.

It is not an unprimeable number, because it can be changed into a prime (153948653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19263 + ... + 26056.

It is an arithmetic number, because the mean of its divisors is an integer number (19940800).

Almost surely, 2^153948643 is an apocalyptic number.

153948643 is a deficient number, since it is larger than the sum of its proper divisors (5577757).

153948643 is an equidigital number, since it uses as much as digits as its factorization.

153948643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45441.

The product of its digits is 311040, while the sum is 43.

The square root of 153948643 is about 12407.6042409484. The cubic root of 153948643 is about 535.9512502537.

The spelling of 153948643 in words is "one hundred fifty-three million, nine hundred forty-eight thousand, six hundred forty-three".