152521007 has 4 divisors (see below), whose sum is σ = 152591016. Its totient is φ = 152451000.

The previous prime is 152521001. The next prime is 152521013. The reversal of 152521007 is 700125251.

It is a happy number.

152521007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (152521001) and next prime (152521013).

It is a cyclic number.

It is not a de Polignac number, because 152521007 - 2¹⁴ = 152504623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152521001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31628 + ... + 36129.

It is an arithmetic number, because the mean of its divisors is an integer number (38147754).

Almost surely, 2^152521007 is an apocalyptic number.

152521007 is a deficient number, since it is larger than the sum of its proper divisors (70009).

152521007 is an equidigital number, since it uses as much as digits as its factorization.

152521007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70008.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 152521007 is about 12349.9395545079. The cubic root of 152521007 is about 534.2893957558.

Adding to 152521007 its reverse (700125251), we get a palindrome (852646258).

The spelling of 152521007 in words is "one hundred fifty-two million, five hundred twenty-one thousand, seven".