3151450721 has 8 divisors (see below), whose sum is σ = 3273056640. Its totient is φ = 3032117968.

The previous prime is 3151450697. The next prime is 3151450759. The reversal of 3151450721 is 1270541513.

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

It is a cyclic number.

It is not a de Polignac number, because 3151450721 - 2²⁶ = 3084341857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3151455721) 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, 565466 + ... + 571011.

It is an arithmetic number, because the mean of its divisors is an integer number (409132080).

Almost surely, 2^3151450721 is an apocalyptic number.

It is an amenable number.

3151450721 is a deficient number, since it is larger than the sum of its proper divisors (121605919).

3151450721 is a wasteful number, since it uses less digits than its factorization.

3151450721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136583.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 3151450721 is about 56137.7833637916. The cubic root of 3151450721 is about 1466.1222122096.

The spelling of 3151450721 in words is "three billion, one hundred fifty-one million, four hundred fifty thousand, seven hundred twenty-one".