147575642 has 4 divisors (see below), whose sum is σ = 221363466. Its totient is φ = 73787820.

The previous prime is 147575639. The next prime is 147575663. The reversal of 147575642 is 246575741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 76020961 + 71554681 = 8719^2 + 8459^2 .

It is a super-2 number, since 2×147575642² = 43557140223424328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147575642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36893909 + ... + 36893912.

Almost surely, 2^147575642 is an apocalyptic number.

147575642 is a deficient number, since it is larger than the sum of its proper divisors (73787824).

147575642 is an equidigital number, since it uses as much as digits as its factorization.

147575642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73787823.

The product of its digits is 235200, while the sum is 41.

The square root of 147575642 is about 12148.0715341983. The cubic root of 147575642 is about 528.4512064608.

Subtracting 147575642 from its reverse (246575741), we obtain a palindrome (99000099).

The spelling of 147575642 in words is "one hundred forty-seven million, five hundred seventy-five thousand, six hundred forty-two".