61373000 has 64 divisors (see below), whose sum is σ = 154692720. Its totient is φ = 22656000.

The previous prime is 61372999. The next prime is 61373003. The reversal of 61373000 is 37316.

It can be written as a sum of positive squares in 8 ways, for example, as 1444 + 61371556 = 38^2 + 7834^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (61373003) 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, 10640 + ... + 15360.

Almost surely, 2^61373000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61373000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77346360).

61373000 is an abundant number, since it is smaller than the sum of its proper divisors (93319720).

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

61373000 is a wasteful number, since it uses less digits than its factorization.

61373000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4741 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 61373000 is about 7834.0921618270. The cubic root of 61373000 is about 394.4504455140.

The spelling of 61373000 in words is "sixty-one million, three hundred seventy-three thousand".