61138203 has 32 divisors (see below), whose sum is σ = 95786496. Its totient is φ = 33965568.

The previous prime is 61138193. The next prime is 61138241. The reversal of 61138203 is 30283116.

It is not a de Polignac number, because 61138203 - 2⁶ = 61138139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61138243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181251 + ... + 181587.

It is an arithmetic number, because the mean of its divisors is an integer number (2993328).

Almost surely, 2^61138203 is an apocalyptic number.

61138203 is a deficient number, since it is larger than the sum of its proper divisors (34648293).

61138203 is a wasteful number, since it uses less digits than its factorization.

61138203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 61138203 is about 7819.0922107365. The cubic root of 61138203 is about 393.9467813576.

The spelling of 61138203 in words is "sixty-one million, one hundred thirty-eight thousand, two hundred three".