145135642 has 16 divisors (see below), whose sum is σ = 229440960. Its totient is φ = 68664672.

The previous prime is 145135619. The next prime is 145135643. The reversal of 145135642 is 246531541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145135643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38598 + ... + 42190.

It is an arithmetic number, because the mean of its divisors is an integer number (14340060).

Almost surely, 2^145135642 is an apocalyptic number.

145135642 is a deficient number, since it is larger than the sum of its proper divisors (84305318).

145135642 is a wasteful number, since it uses less digits than its factorization.

145135642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677.

The product of its digits is 14400, while the sum is 31.

The square root of 145135642 is about 12047.2254897134. The cubic root of 145135642 is about 525.5225539334.

The spelling of 145135642 in words is "one hundred forty-five million, one hundred thirty-five thousand, six hundred forty-two".