61001276 has 36 divisors (see below), whose sum is σ = 127226736. Its totient is φ = 25502400.

The previous prime is 61001257. The next prime is 61001279. The reversal of 61001276 is 67210016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001279) 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, 4241 + ... + 11831.

It is an arithmetic number, because the mean of its divisors is an integer number (3534076).

Almost surely, 2^61001276 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 61001276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63613368).

61001276 is an abundant number, since it is smaller than the sum of its proper divisors (66225460).

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

61001276 is a wasteful number, since it uses less digits than its factorization.

61001276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650 (or 7641 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 61001276 is about 7810.3313630089. The cubic root of 61001276 is about 393.6524630837.

The spelling of 61001276 in words is "sixty-one million, one thousand, two hundred seventy-six".