213153154 has 16 divisors (see below), whose sum is σ = 325856376. Its totient is φ = 104544000.

The previous prime is 213153133. The next prime is 213153169. The reversal of 213153154 is 451351312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 213014025 + 139129 = 14595^2 + 373^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46744 + ... + 51100.

Almost surely, 2^213153154 is an apocalyptic number.

213153154 is a deficient number, since it is larger than the sum of its proper divisors (112703222).

213153154 is a wasteful number, since it uses less digits than its factorization.

213153154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821.

The product of its digits is 1800, while the sum is 25.

The square root of 213153154 is about 14599.7655460627. The cubic root of 213153154 is about 597.3523653848.

The spelling of 213153154 in words is "two hundred thirteen million, one hundred fifty-three thousand, one hundred fifty-four".