145242146 has 16 divisors (see below), whose sum is σ = 249255360. Its totient is φ = 62179440.

The previous prime is 145242143. The next prime is 145242157. The reversal of 145242146 is 641242541.

It is not an unprimeable number, because it can be changed into a prime (145242143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9176 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (15578460).

Almost surely, 2^145242146 is an apocalyptic number.

145242146 is a deficient number, since it is larger than the sum of its proper divisors (104013214).

145242146 is a wasteful number, since it uses less digits than its factorization.

145242146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11209.

The product of its digits is 7680, while the sum is 29.

The square root of 145242146 is about 12051.6449499643. The cubic root of 145242146 is about 525.6510695025.

Adding to 145242146 its reverse (641242541), we get a palindrome (786484687).

The spelling of 145242146 in words is "one hundred forty-five million, two hundred forty-two thousand, one hundred forty-six".