1308215870 has 32 divisors (see below), whose sum is σ = 2573792928. Its totient is φ = 475820928.

The previous prime is 1308215849. The next prime is 1308215927. The reversal of 1308215870 is 785128031.

It is a super-2 number, since 2×1308215870² = 3422857525039713800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1308215870.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66389 + ... + 83808.

It is an arithmetic number, because the mean of its divisors is an integer number (80431029).

Almost surely, 2^1308215870 is an apocalyptic number.

1308215870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1308215870 is a deficient number, since it is larger than the sum of its proper divisors (1265577058).

1308215870 is a wasteful number, since it uses less digits than its factorization.

1308215870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150284.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1308215870 is about 36169.2669264944. The cubic root of 1308215870 is about 1093.6872211259.

The spelling of 1308215870 in words is "one billion, three hundred eight million, two hundred fifteen thousand, eight hundred seventy".