1201535402 has 8 divisors (see below), whose sum is σ = 1803940416. Its totient is φ = 600221932.

The previous prime is 1201535393. The next prime is 1201535459. The reversal of 1201535402 is 2045351021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270128 + ... + 274539.

It is an arithmetic number, because the mean of its divisors is an integer number (225492552).

Almost surely, 2^1201535402 is an apocalyptic number.

1201535402 is a deficient number, since it is larger than the sum of its proper divisors (602405014).

1201535402 is a wasteful number, since it uses less digits than its factorization.

1201535402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545772.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1201535402 is about 34663.1706859024. The cubic root of 1201535402 is about 1063.1116004895. Note that the first 3 decimals are identical.

Adding to 1201535402 its reverse (2045351021), we get a palindrome (3246886423).

The spelling of 1201535402 in words is "one billion, two hundred one million, five hundred thirty-five thousand, four hundred two".