1285132710 has 16 divisors (see below), whose sum is σ = 3084318576. Its totient is φ = 342702048.

The previous prime is 1285132699. The next prime is 1285132753. The reversal of 1285132710 is 172315821.

1285132710 = 5322² + 5323² + ... + 5366².

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 42837757 = 1285132710 / (1 + 2 + 8 + 5 + 1 + 3 + 2 + 7 + 1 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21418849 + ... + 21418908.

It is an arithmetic number, because the mean of its divisors is an integer number (192769911).

Almost surely, 2^1285132710 is an apocalyptic number.

1285132710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1285132710 is an abundant number, since it is smaller than the sum of its proper divisors (1799185866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1285132710 is a wasteful number, since it uses less digits than its factorization.

1285132710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42837767.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 1285132710 is about 35848.7476768715. The cubic root of 1285132710 is about 1087.2163942714.

The spelling of 1285132710 in words is "one billion, two hundred eighty-five million, one hundred thirty-two thousand, seven hundred ten".