145113312 has 24 divisors (see below), whose sum is σ = 380922696. Its totient is φ = 48371072.

The previous prime is 145113307. The next prime is 145113313. The reversal of 145113312 is 213311541.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×145113312³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145113313) 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, 755703 + ... + 755894.

It is an arithmetic number, because the mean of its divisors is an integer number (15871779).

Almost surely, 2^145113312 is an apocalyptic number.

145113312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145113312 is an abundant number, since it is smaller than the sum of its proper divisors (235809384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145113312 is a wasteful number, since it uses less digits than its factorization.

145113312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511610 (or 1511602 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 145113312 is about 12046.2986846583. The cubic root of 145113312 is about 525.4956009389.

Adding to 145113312 its reverse (213311541), we get a palindrome (358424853).

The spelling of 145113312 in words is "one hundred forty-five million, one hundred thirteen thousand, three hundred twelve".