1202781132 has 72 divisors (see below), whose sum is σ = 3478625696. Its totient is φ = 343263744.

The previous prime is 1202781131. The next prime is 1202781169. The reversal of 1202781132 is 2311872021.

It is a junction number, because it is equal to n+sod(n) for n = 1202781096 and 1202781105.

It is not an unprimeable number, because it can be changed into a prime (1202781131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279348 + ... + 283620.

Almost surely, 2^1202781132 is an apocalyptic number.

1202781132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202781132 is an abundant number, since it is smaller than the sum of its proper divisors (2275844564).

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

1202781132 is a wasteful number, since it uses less digits than its factorization.

1202781132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407 (or 5402 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1202781132 is about 34681.1351025309. The cubic root of 1202781132 is about 1063.4788784984.

The spelling of 1202781132 in words is "one billion, two hundred two million, seven hundred eighty-one thousand, one hundred thirty-two".