145102442 has 16 divisors (see below), whose sum is σ = 223430400. Its totient is φ = 70641648.

The previous prime is 145102421. The next prime is 145102471. The reversal of 145102442 is 244201541.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14828 + ... + 22584.

It is an arithmetic number, because the mean of its divisors is an integer number (13964400).

Almost surely, 2^145102442 is an apocalyptic number.

145102442 is a deficient number, since it is larger than the sum of its proper divisors (78327958).

145102442 is a wasteful number, since it uses less digits than its factorization.

145102442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 145102442 is about 12045.8475002799. The cubic root of 145102442 is about 525.4824795150.

Adding to 145102442 its reverse (244201541), we get a palindrome (389303983).

Subtracting 145102442 from its reverse (244201541), we obtain a palindrome (99099099).

The spelling of 145102442 in words is "one hundred forty-five million, one hundred two thousand, four hundred forty-two".