61305150 has 24 divisors (see below), whose sum is σ = 152037144. Its totient is φ = 16348000.

The previous prime is 61305149. The next prime is 61305169. The reversal of 61305150 is 5150316.

It is a happy number.

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, 204201 + ... + 204500.

It is an arithmetic number, because the mean of its divisors is an integer number (6334881).

Almost surely, 2^61305150 is an apocalyptic number.

61305150 is an abundant number, since it is smaller than the sum of its proper divisors (90731994).

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

61305150 is a wasteful number, since it uses less digits than its factorization.

61305150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408716 (or 408711 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 61305150 is about 7829.7605327366. The cubic root of 61305150 is about 394.3050323223.

Adding to 61305150 its reverse (5150316), we get a palindrome (66455466).

The spelling of 61305150 in words is "sixty-one million, three hundred five thousand, one hundred fifty".