1521961132 has 6 divisors (see below), whose sum is σ = 2663431988. Its totient is φ = 760980564.

The previous prime is 1521961117. The next prime is 1521961141. The reversal of 1521961132 is 2311691251.

It is a junction number, because it is equal to n+sod(n) for n = 1521961094 and 1521961103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190245138 + ... + 190245145.

Almost surely, 2^1521961132 is an apocalyptic number.

It is an amenable number.

1521961132 is a deficient number, since it is larger than the sum of its proper divisors (1141470856).

1521961132 is a wasteful number, since it uses less digits than its factorization.

1521961132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380490287 (or 380490285 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 1521961132 is about 39012.3202591181. The cubic root of 1521961132 is about 1150.2736921359.

The spelling of 1521961132 in words is "one billion, five hundred twenty-one million, nine hundred sixty-one thousand, one hundred thirty-two".