155097 has 12 divisors (see below), whose sum is σ = 236080. Its totient is φ = 97848.

The previous prime is 155087. The next prime is 155119. The reversal of 155097 is 790551.

It is not a de Polignac number, because 155097 - 2⁴ = 155081 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 155097.

It is not an unprimeable number, because it can be changed into a prime (155017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283 + ... + 624.

2¹⁵⁵⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

155097 is a deficient number, since it is larger than the sum of its proper divisors (80983).

155097 is a wasteful number, since it uses less digits than its factorization.

155097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The square root of 155097 is about 393.8235645565. The cubic root of 155097 is about 53.7280566639.

The spelling of 155097 in words is "one hundred fifty-five thousand, ninety-seven".