145051311 has 4 divisors (see below), whose sum is σ = 193401752. Its totient is φ = 96700872.

The previous prime is 145051303. The next prime is 145051337. The reversal of 145051311 is 113150541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 145051311 - 2³ = 145051303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145051391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24175216 + ... + 24175221.

It is an arithmetic number, because the mean of its divisors is an integer number (48350438).

Almost surely, 2^145051311 is an apocalyptic number.

145051311 is a deficient number, since it is larger than the sum of its proper divisors (48350441).

145051311 is an equidigital number, since it uses as much as digits as its factorization.

145051311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48350440.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 145051311 is about 12043.7249636481. The cubic root of 145051311 is about 525.4207493312.

The spelling of 145051311 in words is "one hundred forty-five million, fifty-one thousand, three hundred eleven".