61031416 has 8 divisors (see below), whose sum is σ = 114433920. Its totient is φ = 30515704.

The previous prime is 61031407. The next prime is 61031419. The reversal of 61031416 is 61413016.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61031419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3814456 + ... + 3814471.

It is an arithmetic number, because the mean of its divisors is an integer number (14304240).

Almost surely, 2^61031416 is an apocalyptic number.

It is an amenable number.

61031416 is a deficient number, since it is larger than the sum of its proper divisors (53402504).

61031416 is a wasteful number, since it uses less digits than its factorization.

61031416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628933 (or 7628929 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 61031416 is about 7812.2606203326. The cubic root of 61031416 is about 393.7172853982.

The spelling of 61031416 in words is "sixty-one million, thirty-one thousand, four hundred sixteen".