2139512 has 8 divisors (see below), whose sum is σ = 4011600. Its totient is φ = 1069752.

The previous prime is 2139499. The next prime is 2139521. The reversal of 2139512 is 2159312.

It is a tau number, because it is divible by the number of its divisors (8).

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, 133712 + ... + 133727.

It is an arithmetic number, because the mean of its divisors is an integer number (501450).

2^2139512 is an apocalyptic number.

It is an amenable number.

2139512 is a deficient number, since it is larger than the sum of its proper divisors (1872088).

2139512 is a wasteful number, since it uses less digits than its factorization.

2139512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267445 (or 267441 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 2139512 is about 1462.7070793566. The cubic root of 2139512 is about 128.8560780973.

The spelling of 2139512 in words is "two million, one hundred thirty-nine thousand, five hundred twelve".