145868542 has 8 divisors (see below), whose sum is σ = 223458336. Its totient is φ = 71382432.

The previous prime is 145868539. The next prime is 145868573. The reversal of 145868542 is 245868541.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775803 + ... + 775990.

It is an arithmetic number, because the mean of its divisors is an integer number (27932292).

Almost surely, 2^145868542 is an apocalyptic number.

145868542 is a deficient number, since it is larger than the sum of its proper divisors (77589794).

145868542 is a wasteful number, since it uses less digits than its factorization.

145868542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551842.

The product of its digits is 307200, while the sum is 43.

The square root of 145868542 is about 12077.6049778091. The cubic root of 145868542 is about 526.4056565104.

Subtracting 145868542 from its reverse (245868541), we obtain a palindrome (99999999).

The spelling of 145868542 in words is "one hundred forty-five million, eight hundred sixty-eight thousand, five hundred forty-two".