61157203 has 4 divisors (see below), whose sum is σ = 63130048. Its totient is φ = 59184360.

The previous prime is 61157191. The next prime is 61157221. The reversal of 61157203 is 30275116.

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 61157203 - 2¹⁷ = 61026131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61137203) 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, 986376 + ... + 986437.

It is an arithmetic number, because the mean of its divisors is an integer number (15782512).

Almost surely, 2^61157203 is an apocalyptic number.

61157203 is a deficient number, since it is larger than the sum of its proper divisors (1972845).

61157203 is a wasteful number, since it uses less digits than its factorization.

61157203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972844.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 61157203 is about 7820.3070911570. The cubic root of 61157203 is about 393.9875862512.

The spelling of 61157203 in words is "sixty-one million, one hundred fifty-seven thousand, two hundred three".