2154035531 has 2 divisors, whose sum is σ = 2154035532. Its totient is φ = 2154035530.

The previous prime is 2154035479. The next prime is 2154035591. The reversal of 2154035531 is 1355304512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154035531 - 2¹⁸ = 2153773387 is a prime.

It is a super-2 number, since 2×2154035531² = 9279738137620903922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2154035494 and 2154035503.

It is not a weakly prime, because it can be changed into another prime (2154035591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077017765 + 1077017766.

It is an arithmetic number, because the mean of its divisors is an integer number (1077017766).

Almost surely, 2^2154035531 is an apocalyptic number.

2154035531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154035531 is an equidigital number, since it uses as much as digits as its factorization.

2154035531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2154035531 is about 46411.5883266238. The cubic root of 2154035531 is about 1291.4698969041.

The spelling of 2154035531 in words is "two billion, one hundred fifty-four million, thirty-five thousand, five hundred thirty-one".