1553034146 has 4 divisors (see below), whose sum is σ = 2329551222. Its totient is φ = 776517072.

The previous prime is 1553034107. The next prime is 1553034149. The reversal of 1553034146 is 6414303551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6414303551 = 45497 ⋅140983.

It can be written as a sum of positive squares in only one way, i.e., 1366411225 + 186622921 = 36965^2 + 13661^2 .

It is not an unprimeable number, because it can be changed into a prime (1553034149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388258535 + ... + 388258538.

Almost surely, 2^1553034146 is an apocalyptic number.

1553034146 is a deficient number, since it is larger than the sum of its proper divisors (776517076).

1553034146 is an equidigital number, since it uses as much as digits as its factorization.

1553034146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776517075.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1553034146 is about 39408.5542236708. The cubic root of 1553034146 is about 1158.0491749714.

Adding to 1553034146 its reverse (6414303551), we get a palindrome (7967337697).

The spelling of 1553034146 in words is "one billion, five hundred fifty-three million, thirty-four thousand, one hundred forty-six".