145430520 has 32 divisors (see below), whose sum is σ = 436291920. Its totient is φ = 38781440.

The previous prime is 145430491. The next prime is 145430521. The reversal of 145430520 is 25034541.

It is a super-2 number, since 2×145430520² = 42300072294940800, 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 not an unprimeable number, because it can be changed into a prime (145430521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605841 + ... + 606080.

Almost surely, 2^145430520 is an apocalyptic number.

145430520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145430520 is an abundant number, since it is smaller than the sum of its proper divisors (290861400).

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

145430520 is a wasteful number, since it uses less digits than its factorization.

145430520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211935 (or 1211931 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145430520 is about 12059.4576992500. The cubic root of 145430520 is about 525.8782216987.

The spelling of 145430520 in words is "one hundred forty-five million, four hundred thirty thousand, five hundred twenty".