61370 has 24 divisors (see below), whose sum is σ = 123444. Its totient is φ = 21888.

The previous prime is 61363. The next prime is 61379. The reversal of 61370 is 7316.

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 361 = 247^2 + 19^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61379) 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, 3221 + ... + 3239.

2⁶¹³⁷⁰ is an apocalyptic number.

61370 is an abundant number, since it is smaller than the sum of its proper divisors (62074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61722).

61370 is a wasteful number, since it uses less digits than its factorization.

61370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 61370 is about 247.7296913977. The cubic root of 61370 is about 39.4444018309. Note that the first 4 decimals are identical.

Multiplying 61370 by its sum of digits (17), we get a triangular number (1043290 = T₁₄₄₄).

Adding to 61370 its reverse (7316), we get a palindrome (68686).

The spelling of 61370 in words is "sixty-one thousand, three hundred seventy".