1906137 has 24 divisors (see below), whose sum is σ = 2957760. Its totient is φ = 1179360.

The previous prime is 1906133. The next prime is 1906139. The reversal of 1906137 is 7316091.

It is not a de Polignac number, because 1906137 - 2² = 1906133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1906137.

It is not an unprimeable number, because it can be changed into a prime (1906133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12063 + ... + 12219.

It is an arithmetic number, because the mean of its divisors is an integer number (123240).

2^1906137 is an apocalyptic number.

It is an amenable number.

1906137 is a deficient number, since it is larger than the sum of its proper divisors (1051623).

1906137 is a wasteful number, since it uses less digits than its factorization.

1906137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1906137 is about 1380.6292043847. The cubic root of 1906137 is about 123.9894415221.

The spelling of 1906137 in words is "one million, nine hundred six thousand, one hundred thirty-seven".