2126154629 has 2 divisors, whose sum is σ = 2126154630. Its totient is φ = 2126154628.

The previous prime is 2126154599. The next prime is 2126154647. The reversal of 2126154629 is 9264516212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1082541604 + 1043613025 = 32902^2 + 32305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2126154629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2126154592 and 2126154601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126154529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063077314 + 1063077315.

It is an arithmetic number, because the mean of its divisors is an integer number (1063077315).

Almost surely, 2^2126154629 is an apocalyptic number.

It is an amenable number.

2126154629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126154629 is an equidigital number, since it uses as much as digits as its factorization.

2126154629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 2126154629 is about 46110.2442956010. The cubic root of 2126154629 is about 1285.8736062104.

The spelling of 2126154629 in words is "two billion, one hundred twenty-six million, one hundred fifty-four thousand, six hundred twenty-nine".