1285740152 has 16 divisors (see below), whose sum is σ = 2424700440. Its totient is φ = 639153376.

The previous prime is 1285740151. The next prime is 1285740163. The reversal of 1285740152 is 2510475821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285740151) 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, 463118 + ... + 465885.

Almost surely, 2^1285740152 is an apocalyptic number.

It is an amenable number.

1285740152 is a deficient number, since it is larger than the sum of its proper divisors (1138960288).

1285740152 is a wasteful number, since it uses less digits than its factorization.

1285740152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929182 (or 929178 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 1285740152 is about 35857.2189663393. The cubic root of 1285740152 is about 1087.3876650073.

The spelling of 1285740152 in words is "one billion, two hundred eighty-five million, seven hundred forty thousand, one hundred fifty-two".