61403203 has 4 divisors (see below), whose sum is σ = 62561808. Its totient is φ = 60244600.

The previous prime is 61403191. The next prime is 61403213. The reversal of 61403203 is 30230416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61403203 - 2¹³ = 61395011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61403213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579223 + ... + 579328.

It is an arithmetic number, because the mean of its divisors is an integer number (15640452).

Almost surely, 2^61403203 is an apocalyptic number.

61403203 is a deficient number, since it is larger than the sum of its proper divisors (1158605).

61403203 is a wasteful number, since it uses less digits than its factorization.

61403203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158604.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 61403203 is about 7836.0195890516. The cubic root of 61403203 is about 394.5151408090.

Adding to 61403203 its reverse (30230416), we get a palindrome (91633619).

The spelling of 61403203 in words is "sixty-one million, four hundred three thousand, two hundred three".