154225397 has 4 divisors (see below), whose sum is σ = 154322976. Its totient is φ = 154127820.

The previous prime is 154225381. The next prime is 154225427. The reversal of 154225397 is 793522451.

154225397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154225397 - 2⁴ = 154225381 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 154225397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154225367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46379 + ... + 49592.

It is an arithmetic number, because the mean of its divisors is an integer number (38580744).

Almost surely, 2^154225397 is an apocalyptic number.

It is an amenable number.

154225397 is a deficient number, since it is larger than the sum of its proper divisors (97579).

154225397 is an equidigital number, since it uses as much as digits as its factorization.

154225397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97578.

The product of its digits is 75600, while the sum is 38.

The square root of 154225397 is about 12418.7518293909. The cubic root of 154225397 is about 536.2722184581.

The spelling of 154225397 in words is "one hundred fifty-four million, two hundred twenty-five thousand, three hundred ninety-seven".