61972126 has 4 divisors (see below), whose sum is σ = 92958192. Its totient is φ = 30986062.

The previous prime is 61972093. The next prime is 61972147. The reversal of 61972126 is 62127916.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 61972091 and 61972100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15493030 + ... + 15493033.

It is an arithmetic number, because the mean of its divisors is an integer number (23239548).

Almost surely, 2^61972126 is an apocalyptic number.

61972126 is a deficient number, since it is larger than the sum of its proper divisors (30986066).

61972126 is a wasteful number, since it uses less digits than its factorization.

61972126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30986065.

The product of its digits is 9072, while the sum is 34.

The square root of 61972126 is about 7872.2376742576. The cubic root of 61972126 is about 395.7298390284.

The spelling of 61972126 in words is "sixty-one million, nine hundred seventy-two thousand, one hundred twenty-six".