155271122 has 8 divisors (see below), whose sum is σ = 233180400. Its totient is φ = 77544324.

The previous prime is 155271121. The next prime is 155271167. The reversal of 155271122 is 221172551.

155271122 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 a junction number, because it is equal to n+sod(n) for n = 155271091 and 155271100.

It is not an unprimeable number, because it can be changed into a prime (155271121) 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, 43472 + ... + 46907.

It is an arithmetic number, because the mean of its divisors is an integer number (29147550).

Almost surely, 2^155271122 is an apocalyptic number.

155271122 is a deficient number, since it is larger than the sum of its proper divisors (77909278).

155271122 is an equidigital number, since it uses as much as digits as its factorization.

155271122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91240.

The product of its digits is 1400, while the sum is 26.

The square root of 155271122 is about 12460.7833622128. The cubic root of 155271122 is about 537.4815535043.

The spelling of 155271122 in words is "one hundred fifty-five million, two hundred seventy-one thousand, one hundred twenty-two".