155352891 has 8 divisors (see below), whose sum is σ = 207561024. Its totient is φ = 103356680.

The previous prime is 155352889. The next prime is 155352929. The reversal of 155352891 is 198253551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155352891 - 2¹ = 155352889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155352871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51261 + ... + 54206.

It is an arithmetic number, because the mean of its divisors is an integer number (25945128).

Almost surely, 2^155352891 is an apocalyptic number.

155352891 is a deficient number, since it is larger than the sum of its proper divisors (52208133).

155352891 is a wasteful number, since it uses less digits than its factorization.

155352891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105961.

The product of its digits is 54000, while the sum is 39.

The square root of 155352891 is about 12464.0639841105. The cubic root of 155352891 is about 537.5758865994.

The spelling of 155352891 in words is "one hundred fifty-five million, three hundred fifty-two thousand, eight hundred ninety-one".