1630331475 has 12 divisors (see below), whose sum is σ = 2695481496. Its totient is φ = 869510080.

The previous prime is 1630331473. The next prime is 1630331491. The reversal of 1630331475 is 5741330361.

It is not a de Polignac number, because 1630331475 - 2¹ = 1630331473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1630331473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10868802 + ... + 10868951.

It is an arithmetic number, because the mean of its divisors is an integer number (224623458).

Almost surely, 2^1630331475 is an apocalyptic number.

1630331475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1630331475 is a deficient number, since it is larger than the sum of its proper divisors (1065150021).

1630331475 is a wasteful number, since it uses less digits than its factorization.

1630331475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21737766 (or 21737761 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 1630331475 is about 40377.3633983201. The cubic root of 1630331475 is about 1176.9516922839.

The spelling of 1630331475 in words is "one billion, six hundred thirty million, three hundred thirty-one thousand, four hundred seventy-five".