1561650153 has 32 divisors (see below), whose sum is σ = 2435014656. Its totient is φ = 871687488.

The previous prime is 1561650149. The next prime is 1561650161. The reversal of 1561650153 is 3510561651.

It is not a de Polignac number, because 1561650153 - 2² = 1561650149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1561650133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643300 + ... + 645722.

It is an arithmetic number, because the mean of its divisors is an integer number (76094208).

Almost surely, 2^1561650153 is an apocalyptic number.

It is an amenable number.

1561650153 is a deficient number, since it is larger than the sum of its proper divisors (873364503).

1561650153 is a wasteful number, since it uses less digits than its factorization.

1561650153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 1561650153 is about 39517.7194812656. The cubic root of 1561650153 is about 1160.1867894311.

The spelling of 1561650153 in words is "one billion, five hundred sixty-one million, six hundred fifty thousand, one hundred fifty-three".