1972549503 has 10 divisors (see below), whose sum is σ = 2946648144. Its totient is φ = 1315032948.

The previous prime is 1972549489. The next prime is 1972549519. The reversal of 1972549503 is 3059452791.

It is a happy number.

1972549503 is a `hidden beast` number, since 1 + 97 + 2 + 54 + 9 + 503 = 666.

It is not a de Polignac number, because 1972549503 - 2⁸ = 1972549247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972549603) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12176151 + ... + 12176312.

Almost surely, 2^1972549503 is an apocalyptic number.

1972549503 is a deficient number, since it is larger than the sum of its proper divisors (974098641).

1972549503 is an equidigital number, since it uses as much as digits as its factorization.

1972549503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24352475 (or 24352466 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 1972549503 is about 44413.3932840084. The cubic root of 1972549503 is about 1254.1302318902.

The spelling of 1972549503 in words is "one billion, nine hundred seventy-two million, five hundred forty-nine thousand, five hundred three".