3137842 has 4 divisors (see below), whose sum is σ = 4706766. Its totient is φ = 1568920.

The previous prime is 3137837. The next prime is 3137857. The reversal of 3137842 is 2487313.

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., 2343961 + 793881 = 1531^2 + 891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3137842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784459 + ... + 784462.

Almost surely, 2^3137842 is an apocalyptic number.

3137842 is a deficient number, since it is larger than the sum of its proper divisors (1568924).

3137842 is a wasteful number, since it uses less digits than its factorization.

3137842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568923.

The product of its digits is 4032, while the sum is 28.

The square root of 3137842 is about 1771.3954950829. The cubic root of 3137842 is about 146.4008811298.

It can be divided in two parts, 31378 and 42, that multiplied together give a triangular number (1317876 = T₁₆₂₃).

The spelling of 3137842 in words is "three million, one hundred thirty-seven thousand, eight hundred forty-two".