1955203 has 2 divisors, whose sum is σ = 1955204. Its totient is φ = 1955202.

The previous prime is 1955197. The next prime is 1955237. The reversal of 1955203 is 3025591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1955203 - 2⁹ = 1954691 is a prime.

It is equal to p₁₄₅₈₇₀ and since 1955203 and 145870 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1955293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977601 + 977602.

It is an arithmetic number, because the mean of its divisors is an integer number (977602).

2^1955203 is an apocalyptic number.

1955203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955203 is an equidigital number, since it uses as much as digits as its factorization.

1955203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 1955203 is about 1398.2857361784. The cubic root of 1955203 is about 125.0443149543.

The spelling of 1955203 in words is "one million, nine hundred fifty-five thousand, two hundred three".