145428164 has 48 divisors (see below), whose sum is σ = 297271296. Its totient is φ = 60967200.

The previous prime is 145428139. The next prime is 145428169. The reversal of 145428164 is 461824541.

It is a super-2 number, since 2×145428164² = 42298701768821792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145428169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379517 + ... + 379899.

It is an arithmetic number, because the mean of its divisors is an integer number (6193152).

Almost surely, 2^145428164 is an apocalyptic number.

145428164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145428164 is an abundant number, since it is smaller than the sum of its proper divisors (151843132).

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

145428164 is a wasteful number, since it uses less digits than its factorization.

145428164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 654 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 145428164 is about 12059.3600161866. The cubic root of 145428164 is about 525.8753819102.

The spelling of 145428164 in words is "one hundred forty-five million, four hundred twenty-eight thousand, one hundred sixty-four".