213154450 has 24 divisors (see below), whose sum is σ = 409259520. Its totient is φ = 82510800.

The previous prime is 213154441. The next prime is 213154457. The reversal of 213154450 is 54451312.

It is a happy number.

213154450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (213154457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67210 + ... + 70309.

It is an arithmetic number, because the mean of its divisors is an integer number (17052480).

Almost surely, 2^213154450 is an apocalyptic number.

213154450 is a deficient number, since it is larger than the sum of its proper divisors (196105070).

213154450 is a wasteful number, since it uses less digits than its factorization.

213154450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137562 (or 137557 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 213154450 is about 14599.8099302696. The cubic root of 213154450 is about 597.3535760434.

The spelling of 213154450 in words is "two hundred thirteen million, one hundred fifty-four thousand, four hundred fifty".