61813410 has 16 divisors (see below), whose sum is σ = 148352256. Its totient is φ = 16483568.

The previous prime is 61813399. The next prime is 61813417. The reversal of 61813410 is 1431816.

It is not an unprimeable number, because it can be changed into a prime (61813417) 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, 1030194 + ... + 1030253.

It is an arithmetic number, because the mean of its divisors is an integer number (9272016).

Almost surely, 2^61813410 is an apocalyptic number.

61813410 is an abundant number, since it is smaller than the sum of its proper divisors (86538846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61813410 is a wasteful number, since it uses less digits than its factorization.

61813410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060457.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 61813410 is about 7862.1504691783. The cubic root of 61813410 is about 395.3917173755.

It can be divided in two parts, 6181 and 3410, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 61813410 in words is "sixty-one million, eight hundred thirteen thousand, four hundred ten".