1694650141 has 6 divisors (see below), whose sum is σ = 1710631230. Its totient is φ = 1678677048.

The previous prime is 1694650127. The next prime is 1694650163. The reversal of 1694650141 is 1410564961.

It can be written as a sum of positive squares in only one way, i.e., 1554724900 + 139925241 = 39430^2 + 11829^2 .

It is not a de Polignac number, because 1694650141 - 2¹⁵ = 1694617373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1694650141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1694653141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427816 + ... + 431758.

It is an arithmetic number, because the mean of its divisors is an integer number (285105205).

Almost surely, 2^1694650141 is an apocalyptic number.

It is an amenable number.

1694650141 is a deficient number, since it is larger than the sum of its proper divisors (15981089).

1694650141 is an frugal number, since it uses more digits than its factorization.

1694650141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7995 (or 4052 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1694650141 is about 41166.1285646343. The cubic root of 1694650141 is about 1192.2299220628.

The spelling of 1694650141 in words is "one billion, six hundred ninety-four million, six hundred fifty thousand, one hundred forty-one".