145521092 has 12 divisors (see below), whose sum is σ = 265734336. Its totient is φ = 69597000.

The previous prime is 145521091. The next prime is 145521109. The reversal of 145521092 is 290125541.

It is not an unprimeable number, because it can be changed into a prime (145521091) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 790784 + ... + 790967.

It is an arithmetic number, because the mean of its divisors is an integer number (22144528).

Almost surely, 2^145521092 is an apocalyptic number.

It is an amenable number.

145521092 is a deficient number, since it is larger than the sum of its proper divisors (120213244).

145521092 is a wasteful number, since it uses less digits than its factorization.

145521092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581778 (or 1581776 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 145521092 is about 12063.2123416609. The cubic root of 145521092 is about 525.9873687975.

The spelling of 145521092 in words is "one hundred forty-five million, five hundred twenty-one thousand, ninety-two".