2157151741 has 2 divisors, whose sum is σ = 2157151742. Its totient is φ = 2157151740.

The previous prime is 2157151727. The next prime is 2157151751. The reversal of 2157151741 is 1471517512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1599200100 + 557951641 = 39990^2 + 23621^2 .

It is a cyclic number.

It is not a de Polignac number, because 2157151741 - 2⁷ = 2157151613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2157151697 and 2157151706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2157151751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078575870 + 1078575871.

It is an arithmetic number, because the mean of its divisors is an integer number (1078575871).

Almost surely, 2^2157151741 is an apocalyptic number.

It is an amenable number.

2157151741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2157151741 is an equidigital number, since it uses as much as digits as its factorization.

2157151741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9800, while the sum is 34.

The square root of 2157151741 is about 46445.1476582861. The cubic root of 2157151741 is about 1292.0923800192.

The spelling of 2157151741 in words is "two billion, one hundred fifty-seven million, one hundred fifty-one thousand, seven hundred forty-one".