45152122231531 has 32 divisors (see below), whose sum is σ = 54184573301760. Its totient is φ = 36786986780544.

The previous prime is 45152122231507. The next prime is 45152122231537. The reversal of 45152122231531 is 13513222125154.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-45152122231531 is a prime.

It is a super-2 number, since 2×45152122231531² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45152122231537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18111681 + ... + 20453293.

It is an arithmetic number, because the mean of its divisors is an integer number (1693267915680).

Almost surely, 2^{45152122231531} is an apocalyptic number.

45152122231531 is a deficient number, since it is larger than the sum of its proper divisors (9032451070229).

45152122231531 is a wasteful number, since it uses less digits than its factorization.

45152122231531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342395.

The product of its digits is 72000, while the sum is 37.

Adding to 45152122231531 its reverse (13513222125154), we get a palindrome (58665344356685).

The spelling of 45152122231531 in words is "forty-five trillion, one hundred fifty-two billion, one hundred twenty-two million, two hundred thirty-one thousand, five hundred thirty-one".