1402122154 has 16 divisors (see below), whose sum is σ = 2148078240. Its totient is φ = 686251440.

The previous prime is 1402122151. The next prime is 1402122191. The reversal of 1402122154 is 4512212041.

It is not an unprimeable number, because it can be changed into a prime (1402122151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20652 + ... + 56839.

It is an arithmetic number, because the mean of its divisors is an integer number (134254890).

Almost surely, 2^1402122154 is an apocalyptic number.

1402122154 is a deficient number, since it is larger than the sum of its proper divisors (745956086).

1402122154 is a wasteful number, since it uses less digits than its factorization.

1402122154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77685.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1402122154 is about 37444.9216049386. The cubic root of 1402122154 is about 1119.2539020063.

Adding to 1402122154 its reverse (4512212041), we get a palindrome (5914334195).

The spelling of 1402122154 in words is "one billion, four hundred two million, one hundred twenty-two thousand, one hundred fifty-four".