1601147902 has 4 divisors (see below), whose sum is σ = 2401721856. Its totient is φ = 800573950.

The previous prime is 1601147897. The next prime is 1601147927. The reversal of 1601147902 is 2097411061.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400286974 + ... + 400286977.

It is an arithmetic number, because the mean of its divisors is an integer number (600430464).

Almost surely, 2^1601147902 is an apocalyptic number.

1601147902 is a deficient number, since it is larger than the sum of its proper divisors (800573954).

1601147902 is an equidigital number, since it uses as much as digits as its factorization.

1601147902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800573953.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1601147902 is about 40014.3462023310. The cubic root of 1601147902 is about 1169.8867355717.

Adding to 1601147902 its reverse (2097411061), we get a palindrome (3698558963).

The spelling of 1601147902 in words is "one billion, six hundred one million, one hundred forty-seven thousand, nine hundred two".