3139970 has 8 divisors (see below), whose sum is σ = 5651964. Its totient is φ = 1255984.

The previous prime is 3139967. The next prime is 3139979. The reversal of 3139970 is 799313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3129361 + 10609 = 1769^2 + 103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3139979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156989 + ... + 157008.

Almost surely, 2^3139970 is an apocalyptic number.

3139970 is a deficient number, since it is larger than the sum of its proper divisors (2511994).

3139970 is a wasteful number, since it uses less digits than its factorization.

3139970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314004.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 3139970 is about 1771.9960496570. The cubic root of 3139970 is about 146.4339686971.

The spelling of 3139970 in words is "three million, one hundred thirty-nine thousand, nine hundred seventy".