155120067 has 6 divisors (see below), whose sum is σ = 224062332. Its totient is φ = 103413372.

The previous prime is 155120051. The next prime is 155120081. The reversal of 155120067 is 760021551.

It is not a de Polignac number, because 155120067 - 2⁴ = 155120051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155120067.

It is not an unprimeable number, because it can be changed into a prime (155120267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8617773 + ... + 8617790.

It is an arithmetic number, because the mean of its divisors is an integer number (37343722).

Almost surely, 2^155120067 is an apocalyptic number.

155120067 is a deficient number, since it is larger than the sum of its proper divisors (68942265).

155120067 is a wasteful number, since it uses less digits than its factorization.

155120067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17235569 (or 17235566 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 155120067 is about 12454.7206712957. The cubic root of 155120067 is about 537.3072012326.

The spelling of 155120067 in words is "one hundred fifty-five million, one hundred twenty thousand, sixty-seven".