152520450469 has 4 divisors (see below), whose sum is σ = 156642624844. Its totient is φ = 148398276096.

The previous prime is 152520450463. The next prime is 152520450493. The reversal of 152520450469 is 964054025251.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102744609444 + 49775841025 = 320538^2 + 223105^2 .

It is a cyclic number.

It is not a de Polignac number, because 152520450469 - 2¹⁵ = 152520417701 is a prime.

It is a super-2 number, since 2×152520450469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152520450463) 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, 2061087132 + ... + 2061087205.

It is an arithmetic number, because the mean of its divisors is an integer number (39160656211).

Almost surely, 2^152520450469 is an apocalyptic number.

It is an amenable number.

152520450469 is a deficient number, since it is larger than the sum of its proper divisors (4122174375).

152520450469 is an equidigital number, since it uses as much as digits as its factorization.

152520450469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122174374.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 152520450469 in words is "one hundred fifty-two billion, five hundred twenty million, four hundred fifty thousand, four hundred sixty-nine".