1002142154 has 32 divisors (see below), whose sum is σ = 1747509120. Its totient is φ = 427154112.

The previous prime is 1002142139. The next prime is 1002142171. The reversal of 1002142154 is 4512412001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11552 + ... + 46235.

It is an arithmetic number, because the mean of its divisors is an integer number (54609660).

Almost surely, 2^1002142154 is an apocalyptic number.

1002142154 is a deficient number, since it is larger than the sum of its proper divisors (745366966).

1002142154 is a wasteful number, since it uses less digits than its factorization.

1002142154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57854.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1002142154 is about 31656.6289108616. The cubic root of 1002142154 is about 1000.7135420699.

Adding to 1002142154 its reverse (4512412001), we get a palindrome (5514554155).

The spelling of 1002142154 in words is "one billion, two million, one hundred forty-two thousand, one hundred fifty-four".