2156460001 has 2 divisors, whose sum is σ = 2156460002. Its totient is φ = 2156460000.

The previous prime is 2156459999. The next prime is 2156460023. The reversal of 2156460001 is 1000646512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1410077601 + 746382400 = 37551^2 + 27320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2156460001 - 2¹ = 2156459999 is a prime.

Together with 2156459999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2156460701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078230000 + 1078230001.

It is an arithmetic number, because the mean of its divisors is an integer number (1078230001).

Almost surely, 2^2156460001 is an apocalyptic number.

It is an amenable number.

2156460001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2156460001 is an equidigital number, since it uses as much as digits as its factorization.

2156460001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2156460001 is about 46437.7002122198. The cubic root of 2156460001 is about 1291.9542522709.

The spelling of 2156460001 in words is "two billion, one hundred fifty-six million, four hundred sixty thousand, one".