1699142 has 4 divisors (see below), whose sum is σ = 2548716. Its totient is φ = 849570.

The previous prime is 1699129. The next prime is 1699153. The reversal of 1699142 is 2419961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2419961 = 853 ⋅2837.

It is a junction number, because it is equal to n+sod(n) for n = 1699099 and 1699108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424784 + ... + 424787.

It is an arithmetic number, because the mean of its divisors is an integer number (637179).

2^1699142 is an apocalyptic number.

1699142 is a deficient number, since it is larger than the sum of its proper divisors (849574).

1699142 is an equidigital number, since it uses as much as digits as its factorization.

1699142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849573.

The product of its digits is 3888, while the sum is 32.

The square root of 1699142 is about 1303.5114115342. The cubic root of 1699142 is about 119.3282372143.

The spelling of 1699142 in words is "one million, six hundred ninety-nine thousand, one hundred forty-two".