7452122155 has 4 divisors (see below), whose sum is σ = 8942546592. Its totient is φ = 5961697720.

The previous prime is 7452122143. The next prime is 7452122173. The reversal of 7452122155 is 5512212547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5512212547 = 1627 ⋅3387961.

It is not a de Polignac number, because 7452122155 - 2⁵ = 7452122123 is a prime.

It is a super-2 number, since 2×7452122155² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7452122155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745212211 + ... + 745212220.

It is an arithmetic number, because the mean of its divisors is an integer number (2235636648).

Almost surely, 2^7452122155 is an apocalyptic number.

7452122155 is a deficient number, since it is larger than the sum of its proper divisors (1490424437).

7452122155 is a wasteful number, since it uses less digits than its factorization.

7452122155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490424436.

The product of its digits is 28000, while the sum is 34.

The square root of 7452122155 is about 86325.6749466808. The cubic root of 7452122155 is about 1953.2596941109.

The spelling of 7452122155 in words is "seven billion, four hundred fifty-two million, one hundred twenty-two thousand, one hundred fifty-five".