151020155 has 16 divisors (see below), whose sum is σ = 212907744. Its totient is φ = 101383680.

The previous prime is 151020143. The next prime is 151020157. The reversal of 151020155 is 551020151.

It is a happy number.

It is not a de Polignac number, because 151020155 - 2⁶ = 151020091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151020157) 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 15 ways as a sum of consecutive naturals, for example, 104894 + ... + 106323.

It is an arithmetic number, because the mean of its divisors is an integer number (13306734).

Almost surely, 2^151020155 is an apocalyptic number.

151020155 is a deficient number, since it is larger than the sum of its proper divisors (61887589).

151020155 is a wasteful number, since it uses less digits than its factorization.

151020155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211246.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 151020155 is about 12289.0257953997. The cubic root of 151020155 is about 532.5310935725.

The spelling of 151020155 in words is "one hundred fifty-one million, twenty thousand, one hundred fifty-five".