61021027 has 8 divisors (see below), whose sum is σ = 64319760. Its totient is φ = 57731040.

The previous prime is 61020977. The next prime is 61021031. The reversal of 61021027 is 72012016.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61021027 is a prime.

It is a super-2 number, since 2×61021027² = 7447131472269458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61020995 and 61021013.

It is not an unprimeable number, because it can be changed into a prime (61021127) 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, 16173 + ... + 19585.

It is an arithmetic number, because the mean of its divisors is an integer number (8039970).

Almost surely, 2^61021027 is an apocalyptic number.

61021027 is a deficient number, since it is larger than the sum of its proper divisors (3298733).

61021027 is a wasteful number, since it uses less digits than its factorization.

61021027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 61021027 is about 7811.5956756606. The cubic root of 61021027 is about 393.6949441121.

The spelling of 61021027 in words is "sixty-one million, twenty-one thousand, twenty-seven".