2972121337 has 8 divisors (see below), whose sum is σ = 2981036520. Its totient is φ = 2963220480.

The previous prime is 2972121329. The next prime is 2972121349. The reversal of 2972121337 is 7331212792.

It can be written as a sum of positive squares in 4 ways, for example, as 839898361 + 2132222976 = 28981^2 + 46176^2 .

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 2972121337 - 2³ = 2972121329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2972121296 and 2972121305.

It is not an unprimeable number, because it can be changed into a prime (2972121307) 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, 519589 + ... + 525277.

It is an arithmetic number, because the mean of its divisors is an integer number (372629565).

Almost surely, 2^2972121337 is an apocalyptic number.

It is an amenable number.

2972121337 is a deficient number, since it is larger than the sum of its proper divisors (8915183).

2972121337 is an equidigital number, since it uses as much as digits as its factorization.

2972121337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7163.

The product of its digits is 31752, while the sum is 37.

The square root of 2972121337 is about 54517.1655260983. The cubic root of 2972121337 is about 1437.7681051740.

The spelling of 2972121337 in words is "two billion, nine hundred seventy-two million, one hundred twenty-one thousand, three hundred thirty-seven".