145456311 has 32 divisors (see below), whose sum is σ = 260402688. Its totient is φ = 69747840.

The previous prime is 145456303. The next prime is 145456319. The reversal of 145456311 is 113654541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145456303) and next prime (145456319).

It is not a de Polignac number, because 145456311 - 2³ = 145456303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145456319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21216 + ... + 27221.

It is an arithmetic number, because the mean of its divisors is an integer number (8137584).

Almost surely, 2^145456311 is an apocalyptic number.

145456311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145456311 is a deficient number, since it is larger than the sum of its proper divisors (114946377).

145456311 is a wasteful number, since it uses less digits than its factorization.

145456311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48471.

The product of its digits is 7200, while the sum is 30.

The square root of 145456311 is about 12060.5269785362. The cubic root of 145456311 is about 525.9093066996.

The spelling of 145456311 in words is "one hundred forty-five million, four hundred fifty-six thousand, three hundred eleven".