145121412 has 12 divisors (see below), whose sum is σ = 338616656. Its totient is φ = 48373800.

The previous prime is 145121387. The next prime is 145121461. The reversal of 145121412 is 214121541.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6046714 + ... + 6046737.

Almost surely, 2^145121412 is an apocalyptic number.

145121412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145121412 is an abundant number, since it is smaller than the sum of its proper divisors (193495244).

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

145121412 is a wasteful number, since it uses less digits than its factorization.

145121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12093458 (or 12093456 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 145121412 is about 12046.6348828210. The cubic root of 145121412 is about 525.5053782067.

Adding to 145121412 its reverse (214121541), we get a palindrome (359242953).

The spelling of 145121412 in words is "one hundred forty-five million, one hundred twenty-one thousand, four hundred twelve".