61314251 has 8 divisors (see below), whose sum is σ = 64882944. Its totient is φ = 57820840.

The previous prime is 61314221. The next prime is 61314271. The reversal of 61314251 is 15241316.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61314251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61314221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17141 + ... + 20406.

It is an arithmetic number, because the mean of its divisors is an integer number (8110368).

Almost surely, 2^61314251 is an apocalyptic number.

61314251 is a deficient number, since it is larger than the sum of its proper divisors (3568693).

61314251 is a wasteful number, since it uses less digits than its factorization.

61314251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37641.

The product of its digits is 720, while the sum is 23.

The square root of 61314251 is about 7830.3416911397. The cubic root of 61314251 is about 394.3245434212.

Adding to 61314251 its reverse (15241316), we get a palindrome (76555567).

The spelling of 61314251 in words is "sixty-one million, three hundred fourteen thousand, two hundred fifty-one".