1203153997 has 2 divisors, whose sum is σ = 1203153998. Its totient is φ = 1203153996.

The previous prime is 1203153949. The next prime is 1203154003. The reversal of 1203153997 is 7993513021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119504681 + 83649316 = 33459^2 + 9146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203153997 - 2¹¹ = 1203151949 is a prime.

It is a super-3 number, since 3×1203153997³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203553997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601576998 + 601576999.

It is an arithmetic number, because the mean of its divisors is an integer number (601576999).

Almost surely, 2^1203153997 is an apocalyptic number.

It is an amenable number.

1203153997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203153997 is an equidigital number, since it uses as much as digits as its factorization.

1203153997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 1203153997 is about 34686.5103029982. The cubic root of 1203153997 is about 1063.5887608018.

The spelling of 1203153997 in words is "one billion, two hundred three million, one hundred fifty-three thousand, nine hundred ninety-seven".