1421191652 has 12 divisors (see below), whose sum is σ = 2567314176. Its totient is φ = 687673320.

The previous prime is 1421191637. The next prime is 1421191663. The reversal of 1421191652 is 2561911241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5730488 + ... + 5730735.

It is an arithmetic number, because the mean of its divisors is an integer number (213942848).

Almost surely, 2^1421191652 is an apocalyptic number.

It is an amenable number.

1421191652 is a deficient number, since it is larger than the sum of its proper divisors (1146122524).

1421191652 is a wasteful number, since it uses less digits than its factorization.

1421191652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11461258 (or 11461256 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 1421191652 is about 37698.6956273025. The cubic root of 1421191652 is about 1124.3051912489.

The spelling of 1421191652 in words is "one billion, four hundred twenty-one million, one hundred ninety-one thousand, six hundred fifty-two".