145420512 has 24 divisors (see below), whose sum is σ = 381729096. Its totient is φ = 48473472.

The previous prime is 145420493. The next prime is 145420553. The reversal of 145420512 is 215024541.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×145420512² = 42294250620684288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 757303 + ... + 757494.

It is an arithmetic number, because the mean of its divisors is an integer number (15905379).

Almost surely, 2^145420512 is an apocalyptic number.

145420512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145420512 is an abundant number, since it is smaller than the sum of its proper divisors (236308584).

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

145420512 is a wasteful number, since it uses less digits than its factorization.

145420512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514810 (or 1514802 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145420512 is about 12059.0427480791. The cubic root of 145420512 is about 525.8661584125.

The spelling of 145420512 in words is "one hundred forty-five million, four hundred twenty thousand, five hundred twelve".