145120542 has 16 divisors (see below), whose sum is σ = 331704192. Its totient is φ = 41463000.

The previous prime is 145120541. The next prime is 145120559. The reversal of 145120542 is 245021541.

145120542 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145120541) 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, 1727584 + ... + 1727667.

It is an arithmetic number, because the mean of its divisors is an integer number (20731512).

Almost surely, 2^145120542 is an apocalyptic number.

145120542 is an abundant number, since it is smaller than the sum of its proper divisors (186583650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145120542 is a wasteful number, since it uses less digits than its factorization.

145120542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455263.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145120542 is about 12046.5987730977. The cubic root of 145120542 is about 525.5043280732.

Subtracting 145120542 from its reverse (245021541), we obtain a palindrome (99900999).

The spelling of 145120542 in words is "one hundred forty-five million, one hundred twenty thousand, five hundred forty-two".