145232442 has 24 divisors (see below), whose sum is σ = 328352544. Its totient is φ = 46305864.

The previous prime is 145232431. The next prime is 145232443. The reversal of 145232442 is 244232541.

It is not an unprimeable number, because it can be changed into a prime (145232443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174988 + ... + 175815.

It is an arithmetic number, because the mean of its divisors is an integer number (13681356).

Almost surely, 2^145232442 is an apocalyptic number.

145232442 is an abundant number, since it is smaller than the sum of its proper divisors (183120102).

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

145232442 is a wasteful number, since it uses less digits than its factorization.

145232442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350834 (or 350831 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 145232442 is about 12051.2423425969. The cubic root of 145232442 is about 525.6393625434.

Adding to 145232442 its reverse (244232541), we get a palindrome (389464983).

Subtracting 145232442 from its reverse (244232541), we obtain a palindrome (99000099).

The spelling of 145232442 in words is "one hundred forty-five million, two hundred thirty-two thousand, four hundred forty-two".