2139498 has 12 divisors (see below), whose sum is σ = 4635618. Its totient is φ = 713160.

The previous prime is 2139497. The next prime is 2139499. The reversal of 2139498 is 8949312.

It is an interprime number because it is at equal distance from previous prime (2139497) and next prime (2139499).

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 74529 = 1437^2 + 273^2 .

It is not an unprimeable number, because it can be changed into a prime (2139493) 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, 59413 + ... + 59448.

2^2139498 is an apocalyptic number.

2139498 is an abundant number, since it is smaller than the sum of its proper divisors (2496120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2139498 is a wasteful number, since it uses less digits than its factorization.

2139498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118869 (or 118866 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 2139498 is about 1462.7022937016. The cubic root of 2139498 is about 128.8557970380.

The spelling of 2139498 in words is "two million, one hundred thirty-nine thousand, four hundred ninety-eight".