1607139 has 6 divisors (see below), whose sum is σ = 2321436. Its totient is φ = 1071420.

The previous prime is 1607131. The next prime is 1607141. The reversal of 1607139 is 9317061.

It is not a de Polignac number, because 1607139 - 2³ = 1607131 is a prime.

It is an Ulam number.

1607139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1607131) 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, 89277 + ... + 89294.

It is an arithmetic number, because the mean of its divisors is an integer number (386906).

2^1607139 is an apocalyptic number.

1607139 is a deficient number, since it is larger than the sum of its proper divisors (714297).

1607139 is a wasteful number, since it uses less digits than its factorization.

1607139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178577 (or 178574 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1607139 is about 1267.7298608142. The cubic root of 1607139 is about 117.1344061352.

It can be divided in two parts, 16071 and 39, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 1607139 in words is "one million, six hundred seven thousand, one hundred thirty-nine".