154397 has 4 divisors (see below), whose sum is σ = 156000. Its totient is φ = 152796.

The previous prime is 154387. The next prime is 154409. The reversal of 154397 is 793451.

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, and also an emirpimes, since its reverse is a distinct semiprime: 793451 = 317 ⋅2503.

It is a cyclic number.

It is not a de Polignac number, because 154397 - 2⁶ = 154333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154387) 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, 647 + ... + 852.

It is an arithmetic number, because the mean of its divisors is an integer number (39000).

2¹⁵⁴³⁹⁷ is an apocalyptic number.

It is an amenable number.

154397 is a deficient number, since it is larger than the sum of its proper divisors (1603).

154397 is a wasteful number, since it uses less digits than its factorization.

154397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602.

The product of its digits is 3780, while the sum is 29.

The square root of 154397 is about 392.9338366697. The cubic root of 154397 is about 53.6471043928.

The spelling of 154397 in words is "one hundred fifty-four thousand, three hundred ninety-seven".