1552554145 has 8 divisors (see below), whose sum is σ = 1888586856. Its totient is φ = 1225028736.

The previous prime is 1552554137. The next prime is 1552554187. The reversal of 1552554145 is 5414552551.

It can be written as a sum of positive squares in 4 ways, for example, as 4289041 + 1548265104 = 2071^2 + 39348^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1552554145 - 2³ = 1552554137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126422 + ... + 2127151.

It is an arithmetic number, because the mean of its divisors is an integer number (236073357).

Almost surely, 2^1552554145 is an apocalyptic number.

It is an amenable number.

1552554145 is a deficient number, since it is larger than the sum of its proper divisors (336032711).

1552554145 is an equidigital number, since it uses as much as digits as its factorization.

1552554145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253651.

The product of its digits is 100000, while the sum is 37.

The square root of 1552554145 is about 39402.4636920079. The cubic root of 1552554145 is about 1157.9298554143.

The spelling of 1552554145 in words is "one billion, five hundred fifty-two million, five hundred fifty-four thousand, one hundred forty-five".