145415512 has 64 divisors (see below), whose sum is σ = 324000000. Its totient is φ = 60439680.

The previous prime is 145415497. The next prime is 145415563. The reversal of 145415512 is 215514541.

145415512 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 2×145415512² = 42291342260444288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46989 + ... + 49987.

It is an arithmetic number, because the mean of its divisors is an integer number (5062500).

Almost surely, 2^145415512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145415512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162000000).

145415512 is an abundant number, since it is smaller than the sum of its proper divisors (178584488).

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

145415512 is a wasteful number, since it uses less digits than its factorization.

145415512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064 (or 3060 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 145415512 is about 12058.8354329927. The cubic root of 145415512 is about 525.8601313835.

The spelling of 145415512 in words is "one hundred forty-five million, four hundred fifteen thousand, five hundred twelve".