145530894 has 48 divisors (see below), whose sum is σ = 305673984. Its totient is φ = 46169280.

The previous prime is 145530893. The next prime is 145530911. The reversal of 145530894 is 498035541.

It is a super-2 number, since 2×145530894² = 42358482216878472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145530893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 473889 + ... + 474195.

It is an arithmetic number, because the mean of its divisors is an integer number (6368208).

Almost surely, 2^145530894 is an apocalyptic number.

145530894 is an abundant number, since it is smaller than the sum of its proper divisors (160143090).

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

145530894 is a wasteful number, since it uses less digits than its factorization.

145530894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 145530894 is about 12063.6186113454. The cubic root of 145530894 is about 525.9991783397. Note that the first 3 decimals are identical.

The spelling of 145530894 in words is "one hundred forty-five million, five hundred thirty thousand, eight hundred ninety-four".