61299 has 18 divisors (see below), whose sum is σ = 103740. Its totient is φ = 34776.

The previous prime is 61297. The next prime is 61331. The reversal of 61299 is 99216.

It is a happy number.

It is not a de Polignac number, because 61299 - 2¹ = 61297 is a prime.

61299 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (61291) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 372 + ... + 510.

2⁶¹²⁹⁹ is an apocalyptic number.

61299 is a deficient number, since it is larger than the sum of its proper divisors (42441).

61299 is a wasteful number, since it uses less digits than its factorization.

61299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 149 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 61299 is about 247.5863485736. The cubic root of 61299 is about 39.4291846605.

The spelling of 61299 in words is "sixty-one thousand, two hundred ninety-nine".