1630775341 has 4 divisors (see below), whose sum is σ = 1756219612. Its totient is φ = 1505331072.

The previous prime is 1630775329. The next prime is 1630775353. The reversal of 1630775341 is 1435770361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1435770361 = 3853 ⋅372637.

It is an interprime number because it is at equal distance from previous prime (1630775329) and next prime (1630775353).

It can be written as a sum of positive squares in 2 ways, for example, as 292752100 + 1338023241 = 17110^2 + 36579^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630775341 - 2²¹ = 1628678189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630775341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630775941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62722116 + ... + 62722141.

It is an arithmetic number, because the mean of its divisors is an integer number (439054903).

Almost surely, 2^1630775341 is an apocalyptic number.

It is an amenable number.

1630775341 is a deficient number, since it is larger than the sum of its proper divisors (125444271).

1630775341 is a wasteful number, since it uses less digits than its factorization.

1630775341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125444270.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 1630775341 is about 40382.8594950878. The cubic root of 1630775341 is about 1177.0584929449.

The spelling of 1630775341 in words is "one billion, six hundred thirty million, seven hundred seventy-five thousand, three hundred forty-one".