6151457021 has 8 divisors (see below), whose sum is σ = 6514763904. Its totient is φ = 5788312000.

The previous prime is 6151457009. The next prime is 6151457023. The reversal of 6151457021 is 1207541516.

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-6151457021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6151457023) 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, 42686 + ... + 118848.

It is an arithmetic number, because the mean of its divisors is an integer number (814345488).

Almost surely, 2^6151457021 is an apocalyptic number.

It is an amenable number.

6151457021 is a deficient number, since it is larger than the sum of its proper divisors (363306883).

6151457021 is a wasteful number, since it uses less digits than its factorization.

6151457021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80931.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 6151457021 is about 78431.2247832456. The cubic root of 6151457021 is about 1832.2834744573.

Adding to 6151457021 its reverse (1207541516), we get a palindrome (7358998537).

The spelling of 6151457021 in words is "six billion, one hundred fifty-one million, four hundred fifty-seven thousand, twenty-one".