145381412 has 12 divisors (see below), whose sum is σ = 277546416. Its totient is φ = 66082440.

The previous prime is 145381381. The next prime is 145381417. The reversal of 145381412 is 214183541.

It is a super-2 number, since 2×145381412² = 42271509910227488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145381417) 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, 1652018 + ... + 1652105.

It is an arithmetic number, because the mean of its divisors is an integer number (23128868).

Almost surely, 2^145381412 is an apocalyptic number.

It is an amenable number.

145381412 is a deficient number, since it is larger than the sum of its proper divisors (132165004).

145381412 is a wasteful number, since it uses less digits than its factorization.

145381412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304138 (or 3304136 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 145381412 is about 12057.4214490495. The cubic root of 145381412 is about 525.8190233612.

The spelling of 145381412 in words is "one hundred forty-five million, three hundred eighty-one thousand, four hundred twelve".