145393642 has 8 divisors (see below), whose sum is σ = 218143296. Its totient is φ = 72679212.

The previous prime is 145393637. The next prime is 145393657. The reversal of 145393642 is 246393541.

145393642 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 super-2 number, since 2×145393642² = 42278622268048328, which contains 22 as substring.

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, 7713 + ... + 18715.

It is an arithmetic number, because the mean of its divisors is an integer number (27267912).

Almost surely, 2^145393642 is an apocalyptic number.

145393642 is a deficient number, since it is larger than the sum of its proper divisors (72749654).

145393642 is a wasteful number, since it uses less digits than its factorization.

145393642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17612.

The product of its digits is 77760, while the sum is 37.

The square root of 145393642 is about 12057.9285949121. The cubic root of 145393642 is about 525.8337675348.

It can be divided in two parts, 14539 and 3642, that added together give a palindrome (18181).

The spelling of 145393642 in words is "one hundred forty-five million, three hundred ninety-three thousand, six hundred forty-two".