154314721 has 8 divisors (see below), whose sum is σ = 169834464. Its totient is φ = 139043520.

The previous prime is 154314709. The next prime is 154314731. The reversal of 154314721 is 127413451.

154314721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 154314721 - 2¹⁷ = 154183649 is a prime.

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 154314721.

It is not an unprimeable number, because it can be changed into a prime (154314701) 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, 60831 + ... + 63316.

It is an arithmetic number, because the mean of its divisors is an integer number (21229308).

Almost surely, 2^154314721 is an apocalyptic number.

154314721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154314721 is a deficient number, since it is larger than the sum of its proper divisors (15519743).

154314721 is a wasteful number, since it uses less digits than its factorization.

154314721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124271.

The product of its digits is 3360, while the sum is 28.

The square root of 154314721 is about 12422.3476444672. The cubic root of 154314721 is about 536.3757308834.

The spelling of 154314721 in words is "one hundred fifty-four million, three hundred fourteen thousand, seven hundred twenty-one".