61436172 has 48 divisors (see below), whose sum is σ = 169121792. Its totient is φ = 16986240.

The previous prime is 61436171. The next prime is 61436213. The reversal of 61436172 is 27163416.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (61436171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9193 + ... + 14400.

Almost surely, 2^61436172 is an apocalyptic number.

61436172 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61436172 is an abundant number, since it is smaller than the sum of its proper divisors (107685620).

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

61436172 is a wasteful number, since it uses less digits than its factorization.

61436172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23638 (or 23636 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 61436172 is about 7838.1229895939. The cubic root of 61436172 is about 394.5857367055.

Adding to 61436172 its reverse (27163416), we get a palindrome (88599588).

The spelling of 61436172 in words is "sixty-one million, four hundred thirty-six thousand, one hundred seventy-two".