1900499 has 2 divisors, whose sum is σ = 1900500. Its totient is φ = 1900498.

The previous prime is 1900489. The next prime is 1900501. The reversal of 1900499 is 9940091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1900499 is a prime.

It is a super-2 number, since 2×1900499² = 7223792898002, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1900501, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (1900429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950249 + 950250.

It is an arithmetic number, because the mean of its divisors is an integer number (950250).

2^1900499 is an apocalyptic number.

1900499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1900499 is an equidigital number, since it uses as much as digits as its factorization.

1900499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1900499 is about 1378.5858696505. The cubic root of 1900499 is about 123.8670748666.

The spelling of 1900499 in words is "one million, nine hundred thousand, four hundred ninety-nine".