145009142 has 8 divisors (see below), whose sum is σ = 223392576. Its totient is φ = 70544952.

The previous prime is 145009141. The next prime is 145009177. The reversal of 145009142 is 241900541.

145009142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145009141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979718 + ... + 979865.

It is an arithmetic number, because the mean of its divisors is an integer number (27924072).

Almost surely, 2^145009142 is an apocalyptic number.

145009142 is a deficient number, since it is larger than the sum of its proper divisors (78383434).

145009142 is a wasteful number, since it uses less digits than its factorization.

145009142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959622.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 145009142 is about 12041.9741736976. The cubic root of 145009142 is about 525.3698280058.

Adding to 145009142 its reverse (241900541), we get a palindrome (386909683).

The spelling of 145009142 in words is "one hundred forty-five million, nine thousand, one hundred forty-two".