61535214 has 80 divisors (see below), whose sum is σ = 151240320. Its totient is φ = 18584640.

The previous prime is 61535213. The next prime is 61535231. The reversal of 61535214 is 41253516.

61535214 is a `hidden beast` number, since 615 + 35 + 2 + 14 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61535213) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 128227 + ... + 128705.

It is an arithmetic number, because the mean of its divisors is an integer number (1890504).

Almost surely, 2^61535214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61535214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75620160).

61535214 is an abundant number, since it is smaller than the sum of its proper divisors (89705106).

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

61535214 is a wasteful number, since it uses less digits than its factorization.

61535214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 558 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 61535214 is about 7844.4384120216. The cubic root of 61535214 is about 394.7976616855.

The spelling of 61535214 in words is "sixty-one million, five hundred thirty-five thousand, two hundred fourteen".