145776155 has 16 divisors (see below), whose sum is σ = 201252864. Its totient is φ = 99295200.

The previous prime is 145776143. The next prime is 145776157. The reversal of 145776155 is 551677541.

It is not a de Polignac number, because 145776155 - 2⁶ = 145776091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145776157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8507 + ... + 19076.

It is an arithmetic number, because the mean of its divisors is an integer number (12578304).

Almost surely, 2^145776155 is an apocalyptic number.

145776155 is a deficient number, since it is larger than the sum of its proper divisors (55476709).

145776155 is a wasteful number, since it uses less digits than its factorization.

145776155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27746.

The product of its digits is 147000, while the sum is 41.

The square root of 145776155 is about 12073.7796484779. The cubic root of 145776155 is about 526.2944986379.

The spelling of 145776155 in words is "one hundred forty-five million, seven hundred seventy-six thousand, one hundred fifty-five".