2132154397 has 2 divisors, whose sum is σ = 2132154398. Its totient is φ = 2132154396.

The previous prime is 2132154379. The next prime is 2132154419. The reversal of 2132154397 is 7934512312.

Together with previous prime (2132154379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1520532036 + 611622361 = 38994^2 + 24731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132154397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132154307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066077198 + 1066077199.

It is an arithmetic number, because the mean of its divisors is an integer number (1066077199).

Almost surely, 2^2132154397 is an apocalyptic number.

It is an amenable number.

2132154397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132154397 is an equidigital number, since it uses as much as digits as its factorization.

2132154397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 2132154397 is about 46175.2574113020. The cubic root of 2132154397 is about 1287.0820002544.

The spelling of 2132154397 in words is "two billion, one hundred thirty-two million, one hundred fifty-four thousand, three hundred ninety-seven".