61300921 has 8 divisors (see below), whose sum is σ = 67067424. Its totient is φ = 55566720.

The previous prime is 61300909. The next prime is 61300933. The reversal of 61300921 is 12900316.

It is an interprime number because it is at equal distance from previous prime (61300909) and next prime (61300933).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61300921 - 2⁹ = 61300409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61300892 and 61300901.

It is not an unprimeable number, because it can be changed into a prime (61300961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4011 + ... + 11776.

It is an arithmetic number, because the mean of its divisors is an integer number (8383428).

Almost surely, 2^61300921 is an apocalyptic number.

It is an amenable number.

61300921 is a deficient number, since it is larger than the sum of its proper divisors (5766503).

61300921 is a wasteful number, since it uses less digits than its factorization.

61300921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16151.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 61300921 is about 7829.4904687342. The cubic root of 61300921 is about 394.2959653607.

The spelling of 61300921 in words is "sixty-one million, three hundred thousand, nine hundred twenty-one".