61260231 has 16 divisors (see below), whose sum is σ = 87955200. Its totient is φ = 37784448.

The previous prime is 61260229. The next prime is 61260233. The reversal of 61260231 is 13206216.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61260229) and next prime (61260233).

It is not a de Polignac number, because 61260231 - 2¹ = 61260229 is a prime.

It is a super-2 number, since 2×61260231² = 7505631804346722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61260198 and 61260207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61260233) 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, 7171 + ... + 13188.

It is an arithmetic number, because the mean of its divisors is an integer number (5497200).

Almost surely, 2^61260231 is an apocalyptic number.

61260231 is a deficient number, since it is larger than the sum of its proper divisors (26694969).

61260231 is a wasteful number, since it uses less digits than its factorization.

61260231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20438.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61260231 is about 7826.8915285699. The cubic root of 61260231 is about 394.2087048230.

Adding to 61260231 its reverse (13206216), we get a palindrome (74466447).

The spelling of 61260231 in words is "sixty-one million, two hundred sixty thousand, two hundred thirty-one".