154040397 has 8 divisors (see below), whose sum is σ = 234728256. Its totient is φ = 88023072.

The previous prime is 154040389. The next prime is 154040401. The reversal of 154040397 is 793040451.

154040397 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 154040397 - 2³ = 154040389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154040377) 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, 3667608 + ... + 3667649.

It is an arithmetic number, because the mean of its divisors is an integer number (29341032).

Almost surely, 2^154040397 is an apocalyptic number.

It is an amenable number.

154040397 is a deficient number, since it is larger than the sum of its proper divisors (80687859).

154040397 is an equidigital number, since it uses as much as digits as its factorization.

154040397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335267.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 154040397 is about 12411.3011807788. The cubic root of 154040397 is about 536.0577054621.

The spelling of 154040397 in words is "one hundred fifty-four million, forty thousand, three hundred ninety-seven".