145270530 has 128 divisors (see below), whose sum is σ = 409536000. Its totient is φ = 36571392.

The previous prime is 145270519. The next prime is 145270549. The reversal of 145270530 is 35072541.

It is a happy number.

145270530 is a `hidden beast` number, since 14 + 52 + 70 + 530 = 666.

It is a super-2 number, since 2×145270530² = 42207053772961800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 145270494 and 145270503.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 925212 + ... + 925368.

It is an arithmetic number, because the mean of its divisors is an integer number (3199500).

Almost surely, 2^145270530 is an apocalyptic number.

145270530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145270530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204768000).

145270530 is an abundant number, since it is smaller than the sum of its proper divisors (264265470).

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

145270530 is a wasteful number, since it uses less digits than its factorization.

145270530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 145270530 is about 12052.8224910184. The cubic root of 145270530 is about 525.6853091236.

The spelling of 145270530 in words is "one hundred forty-five million, two hundred seventy thousand, five hundred thirty".