1630156243 has 8 divisors (see below), whose sum is σ = 1716755600. Its totient is φ = 1543637088.

The previous prime is 1630156223. The next prime is 1630156259. The reversal of 1630156243 is 3426510361.

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 1630156243 - 2²⁹ = 1093285331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630156223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24205 + ... + 62017.

It is an arithmetic number, because the mean of its divisors is an integer number (214594450).

Almost surely, 2^1630156243 is an apocalyptic number.

1630156243 is a deficient number, since it is larger than the sum of its proper divisors (86599357).

1630156243 is a wasteful number, since it uses less digits than its factorization.

1630156243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40101.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1630156243 is about 40375.1934113014. The cubic root of 1630156243 is about 1176.9095235611.

The spelling of 1630156243 in words is "one billion, six hundred thirty million, one hundred fifty-six thousand, two hundred forty-three".