153246242 has 4 divisors (see below), whose sum is σ = 229869366. Its totient is φ = 76623120.

The previous prime is 153246239. The next prime is 153246253. The reversal of 153246242 is 242642351.

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., 145467721 + 7778521 = 12061^2 + 2789^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38311559 + ... + 38311562.

Almost surely, 2^153246242 is an apocalyptic number.

153246242 is a deficient number, since it is larger than the sum of its proper divisors (76623124).

153246242 is an equidigital number, since it uses as much as digits as its factorization.

153246242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76623123.

The product of its digits is 11520, while the sum is 29.

The square root of 153246242 is about 12379.2666180190. The cubic root of 153246242 is about 535.1349029475.

Adding to 153246242 its reverse (242642351), we get a palindrome (395888593).

It can be divided in two parts, 1532 and 46242, that added together give a palindrome (47774).

The spelling of 153246242 in words is "one hundred fifty-three million, two hundred forty-six thousand, two hundred forty-two".