61972148 has 36 divisors (see below), whose sum is σ = 130832352. Its totient is φ = 25157520.

The previous prime is 61972147. The next prime is 61972171. The reversal of 61972148 is 84127916.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61972147) 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, 7043 + ... + 13173.

It is an arithmetic number, because the mean of its divisors is an integer number (3634232).

Almost surely, 2^61972148 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 61972148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65416176).

61972148 is an abundant number, since it is smaller than the sum of its proper divisors (68860204).

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

61972148 is a wasteful number, since it uses less digits than its factorization.

61972148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180 (or 6159 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 61972148 is about 7872.2390715730. The cubic root of 61972148 is about 395.7298858562.

The spelling of 61972148 in words is "sixty-one million, nine hundred seventy-two thousand, one hundred forty-eight".