2141705402 has 4 divisors (see below), whose sum is σ = 3212558106. Its totient is φ = 1070852700.

The previous prime is 2141705399. The next prime is 2141705417. The reversal of 2141705402 is 2045071412.

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

It can be written as a sum of positive squares in only one way, i.e., 1942076761 + 199628641 = 44069^2 + 14129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535426349 + ... + 535426352.

Almost surely, 2^2141705402 is an apocalyptic number.

2141705402 is a deficient number, since it is larger than the sum of its proper divisors (1070852704).

2141705402 is a wasteful number, since it uses less digits than its factorization.

2141705402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070852703.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2141705402 is about 46278.5630935102. The cubic root of 2141705402 is about 1289.0009695928. Note that the first 3 decimals are identical.

Adding to 2141705402 its reverse (2045071412), we get a palindrome (4186776814).

The spelling of 2141705402 in words is "two billion, one hundred forty-one million, seven hundred five thousand, four hundred two".