61350100 has 36 divisors (see below), whose sum is σ = 152149984. Its totient is φ = 21034080.

The previous prime is 61350083. The next prime is 61350137. The reversal of 61350100 is 105316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43122 + ... + 44521.

Almost surely, 2^61350100 is an apocalyptic number.

It is an amenable number.

61350100 is an abundant number, since it is smaller than the sum of its proper divisors (90799884).

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

61350100 is a wasteful number, since it uses less digits than its factorization.

61350100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87664 (or 87657 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 61350100 is about 7832.6304649205. The cubic root of 61350100 is about 394.4013792095.

Adding to 61350100 its reverse (105316), we get a palindrome (61455416).

The spelling of 61350100 in words is "sixty-one million, three hundred fifty thousand, one hundred".