153468721 has 8 divisors (see below), whose sum is σ = 175474880. Its totient is φ = 131483088.

The previous prime is 153468697. The next prime is 153468737. The reversal of 153468721 is 127864351.

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 153468721 - 2¹³ = 153460529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153468751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17650 + ... + 24868.

It is an arithmetic number, because the mean of its divisors is an integer number (21934360).

Almost surely, 2^153468721 is an apocalyptic number.

It is an amenable number.

153468721 is a deficient number, since it is larger than the sum of its proper divisors (22006159).

153468721 is an equidigital number, since it uses as much as digits as its factorization.

153468721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263.

The product of its digits is 40320, while the sum is 37.

The square root of 153468721 is about 12388.2493113434. The cubic root of 153468721 is about 535.3937428135.

The spelling of 153468721 in words is "one hundred fifty-three million, four hundred sixty-eight thousand, seven hundred twenty-one".