145879784 has 16 divisors (see below), whose sum is σ = 275205120. Its totient is φ = 72491760.

The previous prime is 145879781. The next prime is 145879793. The reversal of 145879784 is 487978541.

It is a happy number.

145879784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145879784² = 42561822759773312, which contains 22 as substring.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (145879781) 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, 54632 + ... + 57239.

It is an arithmetic number, because the mean of its divisors is an integer number (17200320).

Almost surely, 2^145879784 is an apocalyptic number.

It is an amenable number.

145879784 is a deficient number, since it is larger than the sum of its proper divisors (129325336).

145879784 is a wasteful number, since it uses less digits than its factorization.

145879784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112040 (or 112036 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The square root of 145879784 is about 12078.0703756850. The cubic root of 145879784 is about 526.4191794178.

The spelling of 145879784 in words is "one hundred forty-five million, eight hundred seventy-nine thousand, seven hundred eighty-four".