1319231953 has 32 divisors (see below), whose sum is σ = 1541514240. Its totient is φ = 1118853120.

The previous prime is 1319231941. The next prime is 1319231971. The reversal of 1319231953 is 3591329131.

It is a cyclic number.

It is not a de Polignac number, because 1319231953 - 2¹³ = 1319223761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1319231153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3060648 + ... + 3061078.

It is an arithmetic number, because the mean of its divisors is an integer number (48172320).

Almost surely, 2^1319231953 is an apocalyptic number.

1319231953 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1319231953 is a deficient number, since it is larger than the sum of its proper divisors (222282287).

1319231953 is a wasteful number, since it uses less digits than its factorization.

1319231953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849.

The product of its digits is 21870, while the sum is 37.

The square root of 1319231953 is about 36321.2328122271. The cubic root of 1319231953 is about 1096.7485121775.

The spelling of 1319231953 in words is "one billion, three hundred nineteen million, two hundred thirty-one thousand, nine hundred fifty-three".