61131003 has 8 divisors (see below), whose sum is σ = 82624848. Its totient is φ = 40195584.

The previous prime is 61130989. The next prime is 61131011. The reversal of 61131003 is 30013116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61131003 - 2¹⁰ = 61129979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61131023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139350 + ... + 139787.

It is an arithmetic number, because the mean of its divisors is an integer number (10328106).

Almost surely, 2^61131003 is an apocalyptic number.

61131003 is a deficient number, since it is larger than the sum of its proper divisors (21493845).

61131003 is a wasteful number, since it uses less digits than its factorization.

61131003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279213.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 61131003 is about 7818.6317856771. The cubic root of 61131003 is about 393.9313162417.

Adding to 61131003 its reverse (30013116), we get a palindrome (91144119).

The spelling of 61131003 in words is "sixty-one million, one hundred thirty-one thousand, three".