61003161 has 12 divisors (see below), whose sum is σ = 88940592. Its totient is φ = 40288056.

The previous prime is 61003139. The next prime is 61003169. The reversal of 61003161 is 16130016.

It is not a de Polignac number, because 61003161 - 2⁶ = 61003097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61003169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30711 + ... + 32636.

It is an arithmetic number, because the mean of its divisors is an integer number (7411716).

Almost surely, 2^61003161 is an apocalyptic number.

It is an amenable number.

61003161 is a deficient number, since it is larger than the sum of its proper divisors (27937431).

61003161 is a wasteful number, since it uses less digits than its factorization.

61003161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63460 (or 63457 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 61003161 is about 7810.4520355739. The cubic root of 61003161 is about 393.6565177925.

Adding to 61003161 its reverse (16130016), we get a palindrome (77133177).

It can be divided in two parts, 6100 and 3161, that added together give a cube (9261 = 21³).

The spelling of 61003161 in words is "sixty-one million, three thousand, one hundred sixty-one".