145020542 has 8 divisors (see below), whose sum is σ = 224548032. Its totient is φ = 70171200.

The previous prime is 145020541. The next prime is 145020569. The reversal of 145020542 is 245020541.

It is a happy number.

145020542 is digitally balanced in base 3, 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 (145020541) 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, 1169459 + ... + 1169582.

It is an arithmetic number, because the mean of its divisors is an integer number (28068504).

Almost surely, 2^145020542 is an apocalyptic number.

145020542 is a deficient number, since it is larger than the sum of its proper divisors (79527490).

145020542 is a wasteful number, since it uses less digits than its factorization.

145020542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339074.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 145020542 is about 12042.4475087085. The cubic root of 145020542 is about 525.3835950898.

Subtracting 145020542 from its reverse (245020541), we obtain a palindrome (99999999).

The spelling of 145020542 in words is "one hundred forty-five million, twenty thousand, five hundred forty-two".