145311445 has 8 divisors (see below), whose sum is σ = 175038336. Its totient is φ = 115806096.

The previous prime is 145311443. The next prime is 145311479. The reversal of 145311445 is 544113541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145311445 - 2¹ = 145311443 is a prime.

It is a super-2 number, since 2×145311445² = 42230832095976050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145311443) 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 7 ways as a sum of consecutive naturals, for example, 53937 + ... + 56566.

It is an arithmetic number, because the mean of its divisors is an integer number (21879792).

Almost surely, 2^145311445 is an apocalyptic number.

It is an amenable number.

145311445 is a deficient number, since it is larger than the sum of its proper divisors (29726891).

145311445 is a wasteful number, since it uses less digits than its factorization.

145311445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110771.

The product of its digits is 4800, while the sum is 28.

The square root of 145311445 is about 12054.5196918003. The cubic root of 145311445 is about 525.7346570436.

Adding to 145311445 its reverse (544113541), we get a palindrome (689424986).

The spelling of 145311445 in words is "one hundred forty-five million, three hundred eleven thousand, four hundred forty-five".