151242523 has 4 divisors (see below), whose sum is σ = 160139160. Its totient is φ = 142345888.

The previous prime is 151242493. The next prime is 151242541. The reversal of 151242523 is 325242151.

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

It is a cyclic number.

It is not a de Polignac number, because 151242523 - 2⁵ = 151242491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151242023) 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, 4448293 + ... + 4448326.

It is an arithmetic number, because the mean of its divisors is an integer number (40034790).

Almost surely, 2^151242523 is an apocalyptic number.

151242523 is a deficient number, since it is larger than the sum of its proper divisors (8896637).

151242523 is an equidigital number, since it uses as much as digits as its factorization.

151242523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8896636.

The product of its digits is 2400, while the sum is 25.

The square root of 151242523 is about 12298.0698892143. The cubic root of 151242523 is about 532.7923386156.

Adding to 151242523 its reverse (325242151), we get a palindrome (476484674).

The spelling of 151242523 in words is "one hundred fifty-one million, two hundred forty-two thousand, five hundred twenty-three".