155053097 has 4 divisors (see below), whose sum is σ = 161794560. Its totient is φ = 148311636.

The previous prime is 155053081. The next prime is 155053099. The reversal of 155053097 is 790350551.

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: 790350551 = 191 ⋅4137961.

It is not a de Polignac number, because 155053097 - 2⁴ = 155053081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155053099) 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, 3370697 + ... + 3370742.

It is an arithmetic number, because the mean of its divisors is an integer number (40448640).

Almost surely, 2^155053097 is an apocalyptic number.

It is an amenable number.

155053097 is a deficient number, since it is larger than the sum of its proper divisors (6741463).

155053097 is an equidigital number, since it uses as much as digits as its factorization.

155053097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741462.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 155053097 is about 12452.0318422336. The cubic root of 155053097 is about 537.2298662074.

The spelling of 155053097 in words is "one hundred fifty-five million, fifty-three thousand, ninety-seven".