1002154214144 has 18 divisors (see below), whose sum is σ = 2000393763900. Its totient is φ = 501077106944.

The previous prime is 1002154214077. The next prime is 1002154214189. The reversal of 1002154214144 is 4414124512001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1957332194 + ... + 1957332705.

Almost surely, 2^{1002154214144} is an apocalyptic number.

It is an amenable number.

1002154214144 is a deficient number, since it is larger than the sum of its proper divisors (998239549756).

1002154214144 is an frugal number, since it uses more digits than its factorization.

1002154214144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914664915 (or 3914664901 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 1002154214144 its reverse (4414124512001), we get a palindrome (5416278726145).

The spelling of 1002154214144 in words is "one trillion, two billion, one hundred fifty-four million, two hundred fourteen thousand, one hundred forty-four".