5139646 has 4 divisors (see below), whose sum is σ = 7709472. Its totient is φ = 2569822.

The previous prime is 5139643. The next prime is 5139647. The reversal of 5139646 is 6469315.

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

It is a super-2 number, since 2×5139646² = 52831922010632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5139643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284910 + ... + 1284913.

It is an arithmetic number, because the mean of its divisors is an integer number (1927368).

Almost surely, 2^5139646 is an apocalyptic number.

5139646 is a deficient number, since it is larger than the sum of its proper divisors (2569826).

5139646 is a wasteful number, since it uses less digits than its factorization.

5139646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569825.

The product of its digits is 19440, while the sum is 34.

The square root of 5139646 is about 2267.0787370535. The cubic root of 5139646 is about 172.5749418823.

The spelling of 5139646 in words is "five million, one hundred thirty-nine thousand, six hundred forty-six".