61417431 has 12 divisors (see below), whose sum is σ = 88860408. Its totient is φ = 40877424.

The previous prime is 61417399. The next prime is 61417451. The reversal of 61417431 is 13471416.

It is a happy number.

61417431 is a `hidden beast` number, since 614 + 1 + 7 + 43 + 1 = 666.

It is not a de Polignac number, because 61417431 - 2⁵ = 61417399 is a prime.

It is a super-2 number, since 2×61417431² = 7544201661279522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61417395 and 61417404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61417451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (7405034).

Almost surely, 2^61417431 is an apocalyptic number.

61417431 is a deficient number, since it is larger than the sum of its proper divisors (27442977).

61417431 is a wasteful number, since it uses less digits than its factorization.

61417431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11262 (or 11259 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 61417431 is about 7836.9273953508. The cubic root of 61417431 is about 394.5456100552.

Adding to 61417431 its reverse (13471416), we get a palindrome (74888847).

The spelling of 61417431 in words is "sixty-one million, four hundred seventeen thousand, four hundred thirty-one".