152400523 has 4 divisors (see below), whose sum is σ = 166255128. Its totient is φ = 138545920.

The previous prime is 152400517. The next prime is 152400541. The reversal of 152400523 is 325004251.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152400523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152400494 and 152400503.

It is not an unprimeable number, because it can be changed into a prime (152400503) 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, 6927286 + ... + 6927307.

It is an arithmetic number, because the mean of its divisors is an integer number (41563782).

Almost surely, 2^152400523 is an apocalyptic number.

152400523 is a deficient number, since it is larger than the sum of its proper divisors (13854605).

152400523 is a wasteful number, since it uses less digits than its factorization.

152400523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13854604.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 152400523 is about 12345.0606721879. The cubic root of 152400523 is about 534.1486713558.

Adding to 152400523 its reverse (325004251), we get a palindrome (477404774).

The spelling of 152400523 in words is "one hundred fifty-two million, four hundred thousand, five hundred twenty-three".