145415784 has 16 divisors (see below), whose sum is σ = 363539520. Its totient is φ = 48471920.

The previous prime is 145415771. The next prime is 145415813. The reversal of 145415784 is 487514541.

145415784 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 2×145415784² = 42291500472669312, which contains 22 as substring.

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, 3029472 + ... + 3029519.

It is an arithmetic number, because the mean of its divisors is an integer number (22721220).

Almost surely, 2^145415784 is an apocalyptic number.

It is an amenable number.

145415784 is an abundant number, since it is smaller than the sum of its proper divisors (218123736).

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

145415784 is a wasteful number, since it uses less digits than its factorization.

145415784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059000 (or 6058996 counting only the distinct ones).

The product of its digits is 89600, while the sum is 39.

The square root of 145415784 is about 12058.8467110251. The cubic root of 145415784 is about 525.8604592574.

The spelling of 145415784 in words is "one hundred forty-five million, four hundred fifteen thousand, seven hundred eighty-four".