61351 has 4 divisors (see below), whose sum is σ = 64600. Its totient is φ = 58104.

The previous prime is 61343. The next prime is 61357. The reversal of 61351 is 15316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61351 - 2³ = 61343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61357) 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, 1596 + ... + 1633.

It is an arithmetic number, because the mean of its divisors is an integer number (16150).

2⁶¹³⁵¹ is an apocalyptic number.

61351 is a deficient number, since it is larger than the sum of its proper divisors (3249).

61351 is a wasteful number, since it uses less digits than its factorization.

61351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248.

The product of its digits is 90, while the sum is 16.

The square root of 61351 is about 247.6913401797. The cubic root of 61351 is about 39.4403307810.

Adding to 61351 its reverse (15316), we get a palindrome (76667).

The spelling of 61351 in words is "sixty-one thousand, three hundred fifty-one".