145265642 has 8 divisors (see below), whose sum is σ = 218803332. Its totient is φ = 72331200.

The previous prime is 145265609. The next prime is 145265647. The reversal of 145265642 is 246562541.

It can be written as a sum of positive squares in 2 ways, for example, as 122788561 + 22477081 = 11081^2 + 4741^2 .

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

It is a super-2 number, since 2×145265642² = 42204213491344328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145265647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150209 + ... + 151172.

Almost surely, 2^145265642 is an apocalyptic number.

145265642 is a deficient number, since it is larger than the sum of its proper divisors (73537690).

145265642 is a wasteful number, since it uses less digits than its factorization.

145265642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301624.

The product of its digits is 57600, while the sum is 35.

The square root of 145265642 is about 12052.6197152320. The cubic root of 145265642 is about 525.6794130468.

The spelling of 145265642 in words is "one hundred forty-five million, two hundred sixty-five thousand, six hundred forty-two".