1554545133 has 6 divisors (see below), whose sum is σ = 2245454094. Its totient is φ = 1036363416.

The previous prime is 1554545129. The next prime is 1554545149. The reversal of 1554545133 is 3315454551.

1554545133 is a `hidden beast` number, since 1 + 554 + 54 + 51 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1418426244 + 136118889 = 37662^2 + 11667^2 .

It is not a de Polignac number, because 1554545133 - 2² = 1554545129 is a prime.

It is a super-2 number, since 2×1554545133² = 4833221141067975378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554541133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86363610 + ... + 86363627.

It is an arithmetic number, because the mean of its divisors is an integer number (374242349).

Almost surely, 2^1554545133 is an apocalyptic number.

It is an amenable number.

1554545133 is a deficient number, since it is larger than the sum of its proper divisors (690908961).

1554545133 is a wasteful number, since it uses less digits than its factorization.

1554545133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172727243 (or 172727240 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 1554545133 is about 39427.7203627093. The cubic root of 1554545133 is about 1158.4246185476.

Adding to 1554545133 its reverse (3315454551), we get a palindrome (4869999684).

The spelling of 1554545133 in words is "one billion, five hundred fifty-four million, five hundred forty-five thousand, one hundred thirty-three".