2137402 has 4 divisors (see below), whose sum is σ = 3206106. Its totient is φ = 1068700.

The previous prime is 2137397. The next prime is 2137409. The reversal of 2137402 is 2047312.

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

It can be written as a sum of positive squares in only one way, i.e., 1846881 + 290521 = 1359^2 + 539^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2137402.

It is not an unprimeable number, because it can be changed into a prime (2137409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534349 + ... + 534352.

2^2137402 is an apocalyptic number.

2137402 is a deficient number, since it is larger than the sum of its proper divisors (1068704).

2137402 is a wasteful number, since it uses less digits than its factorization.

2137402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068703.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2137402 is about 1461.9856360443. The cubic root of 2137402 is about 128.8137046102.

The spelling of 2137402 in words is "two million, one hundred thirty-seven thousand, four hundred two".