147505742 has 4 divisors (see below), whose sum is σ = 221258616. Its totient is φ = 73752870.

The previous prime is 147505727. The next prime is 147505751. The reversal of 147505742 is 247505741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247505741 = 7 ⋅35357963.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36876434 + ... + 36876437.

It is an arithmetic number, because the mean of its divisors is an integer number (55314654).

Almost surely, 2^147505742 is an apocalyptic number.

147505742 is a deficient number, since it is larger than the sum of its proper divisors (73752874).

147505742 is an equidigital number, since it uses as much as digits as its factorization.

147505742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73752873.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 147505742 is about 12145.1941935895. The cubic root of 147505742 is about 528.3677586948.

Subtracting 147505742 from its reverse (247505741), we obtain a palindrome (99999999).

The spelling of 147505742 in words is "one hundred forty-seven million, five hundred five thousand, seven hundred forty-two".