2154146426 has 4 divisors (see below), whose sum is σ = 3231219642. Its totient is φ = 1077073212.

The previous prime is 2154146411. The next prime is 2154146453. The reversal of 2154146426 is 6246414512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1592409025 + 561737401 = 39905^2 + 23701^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538536605 + ... + 538536608.

Almost surely, 2^2154146426 is an apocalyptic number.

2154146426 is a deficient number, since it is larger than the sum of its proper divisors (1077073216).

2154146426 is a wasteful number, since it uses less digits than its factorization.

2154146426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077073215.

The product of its digits is 46080, while the sum is 35.

The square root of 2154146426 is about 46412.7830020998. The cubic root of 2154146426 is about 1291.4920591966.

The spelling of 2154146426 in words is "two billion, one hundred fifty-four million, one hundred forty-six thousand, four hundred twenty-six".