151801155 has 48 divisors (see below), whose sum is σ = 296664480. Its totient is φ = 73592640.

The previous prime is 151801151. The next prime is 151801157. The reversal of 151801155 is 551108151.

It is not a de Polignac number, because 151801155 - 2² = 151801151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (151801151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11689 + ... + 20981.

It is an arithmetic number, because the mean of its divisors is an integer number (6180510).

Almost surely, 2^151801155 is an apocalyptic number.

151801155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151801155 is a deficient number, since it is larger than the sum of its proper divisors (144863325).

151801155 is a wasteful number, since it uses less digits than its factorization.

151801155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329 (or 9312 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 27.

The square root of 151801155 is about 12320.7611372025. The cubic root of 151801155 is about 533.4475096265.

151801155 divided by its sum of digits (27) gives a palindrome (5622265).

The spelling of 151801155 in words is "one hundred fifty-one million, eight hundred one thousand, one hundred fifty-five".