61145562 has 8 divisors (see below), whose sum is σ = 122291136. Its totient is φ = 20381852.

The previous prime is 61145561. The next prime is 61145563. The reversal of 61145562 is 26554116.

It is an interprime number because it is at equal distance from previous prime (61145561) and next prime (61145563).

It is a sphenic number, since it is the product of 3 distinct primes.

61145562 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (61145561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5095458 + ... + 5095469.

It is an arithmetic number, because the mean of its divisors is an integer number (15286392).

Almost surely, 2^61145562 is an apocalyptic number.

61145562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61145562 is a wasteful number, since it uses less digits than its factorization.

61145562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10190932.

The product of its digits is 7200, while the sum is 30.

The square root of 61145562 is about 7819.5627755009. The cubic root of 61145562 is about 393.9625867401.

Adding to 61145562 its reverse (26554116), we get a palindrome (87699678).

The spelling of 61145562 in words is "sixty-one million, one hundred forty-five thousand, five hundred sixty-two".