145124772 has 24 divisors (see below), whose sum is σ = 364672896. Its totient is φ = 44653728.

The previous prime is 145124743. The next prime is 145124783. The reversal of 145124772 is 277421541.

It is a super-2 number, since 2×145124772² = 42122398896103968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464988 + ... + 465299.

It is an arithmetic number, because the mean of its divisors is an integer number (15194704).

Almost surely, 2^145124772 is an apocalyptic number.

145124772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145124772 is an abundant number, since it is smaller than the sum of its proper divisors (219548124).

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

145124772 is a wasteful number, since it uses less digits than its factorization.

145124772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930307 (or 930305 counting only the distinct ones).

The product of its digits is 15680, while the sum is 33.

The square root of 145124772 is about 12046.7743400464. The cubic root of 145124772 is about 525.5094338555.

The spelling of 145124772 in words is "one hundred forty-five million, one hundred twenty-four thousand, seven hundred seventy-two".