155112267 has 32 divisors (see below), whose sum is σ = 225580032. Its totient is φ = 94431744.

The previous prime is 155112259. The next prime is 155112277. The reversal of 155112267 is 762211551.

It is not a de Polignac number, because 155112267 - 2³ = 155112259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155112277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390513 + ... + 390909.

It is an arithmetic number, because the mean of its divisors is an integer number (7049376).

Almost surely, 2^155112267 is an apocalyptic number.

155112267 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

155112267 is a deficient number, since it is larger than the sum of its proper divisors (70467765).

155112267 is a wasteful number, since it uses less digits than its factorization.

155112267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627.

The product of its digits is 4200, while the sum is 30.

The square root of 155112267 is about 12454.4075330784. The cubic root of 155112267 is about 537.2981951629.

The spelling of 155112267 in words is "one hundred fifty-five million, one hundred twelve thousand, two hundred sixty-seven".