145511012 has 24 divisors (see below), whose sum is σ = 259144704. Its totient is φ = 71481312.

The previous prime is 145510997. The next prime is 145511017. The reversal of 145511012 is 210115541.

It is a super-2 number, since 2×145511012² = 42346909226528288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145511017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53018 + ... + 55694.

It is an arithmetic number, because the mean of its divisors is an integer number (10797696).

Almost surely, 2^145511012 is an apocalyptic number.

It is an amenable number.

145511012 is a deficient number, since it is larger than the sum of its proper divisors (113633692).

145511012 is a wasteful number, since it uses less digits than its factorization.

145511012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 145511012 is about 12062.7945352642. The cubic root of 145511012 is about 525.9752237652.

Adding to 145511012 its reverse (210115541), we get a palindrome (355626553).

The spelling of 145511012 in words is "one hundred forty-five million, five hundred eleven thousand, twelve".