152449742 has 4 divisors (see below), whose sum is σ = 228674616. Its totient is φ = 76224870.

The previous prime is 152449729. The next prime is 152449763. The reversal of 152449742 is 247944251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247944251 = 7879 ⋅31469.

It is a junction number, because it is equal to n+sod(n) for n = 152449696 and 152449705.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 38112434 + ... + 38112437.

It is an arithmetic number, because the mean of its divisors is an integer number (57168654).

Almost surely, 2^152449742 is an apocalyptic number.

152449742 is a deficient number, since it is larger than the sum of its proper divisors (76224874).

152449742 is an equidigital number, since it uses as much as digits as its factorization.

152449742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76224873.

The product of its digits is 80640, while the sum is 38.

The square root of 152449742 is about 12347.0539806061. The cubic root of 152449742 is about 534.2061677328.

The spelling of 152449742 in words is "one hundred fifty-two million, four hundred forty-nine thousand, seven hundred forty-two".