1200478487 has 12 divisors (see below), whose sum is σ = 1321970040. Its totient is φ = 1089343008.

The previous prime is 1200478469. The next prime is 1200478541. The reversal of 1200478487 is 7848740021.

It is a happy number.

It is not a de Polignac number, because 1200478487 - 2¹⁸ = 1200216343 is a prime.

It is a super-2 number, since 2×1200478487² = 2882297195499618338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200478417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50228 + ... + 70169.

It is an arithmetic number, because the mean of its divisors is an integer number (110164170).

Almost surely, 2^1200478487 is an apocalyptic number.

1200478487 is a deficient number, since it is larger than the sum of its proper divisors (121491553).

1200478487 is a wasteful number, since it uses less digits than its factorization.

1200478487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120482 (or 120469 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 1200478487 is about 34647.9218280116. The cubic root of 1200478487 is about 1062.7997916114.

The spelling of 1200478487 in words is "one billion, two hundred million, four hundred seventy-eight thousand, four hundred eighty-seven".