1554220132 has 6 divisors (see below), whose sum is σ = 2719885238. Its totient is φ = 777110064.

The previous prime is 1554220127. The next prime is 1554220133. The reversal of 1554220132 is 2310224551.

It can be written as a sum of positive squares in only one way, i.e., 1553621056 + 599076 = 39416^2 + 774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1554220097 and 1554220106.

It is not an unprimeable number, because it can be changed into a prime (1554220133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194277513 + ... + 194277520.

Almost surely, 2^1554220132 is an apocalyptic number.

It is an amenable number.

1554220132 is a deficient number, since it is larger than the sum of its proper divisors (1165665106).

1554220132 is a wasteful number, since it uses less digits than its factorization.

1554220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388555037 (or 388555035 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1554220132 is about 39423.5986688176. The cubic root of 1554220132 is about 1158.3438842347.

Adding to 1554220132 its reverse (2310224551), we get a palindrome (3864444683).

The spelling of 1554220132 in words is "one billion, five hundred fifty-four million, two hundred twenty thousand, one hundred thirty-two".