210072154 has 8 divisors (see below), whose sum is σ = 316271808. Its totient is φ = 104648220.

The previous prime is 210072131. The next prime is 210072167. The reversal of 210072154 is 451270012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 193252 + ... + 194335.

It is an arithmetic number, because the mean of its divisors is an integer number (39533976).

Almost surely, 2^210072154 is an apocalyptic number.

210072154 is a deficient number, since it is larger than the sum of its proper divisors (106199654).

210072154 is a wasteful number, since it uses less digits than its factorization.

210072154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387860.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 210072154 is about 14493.8660818982. The cubic root of 210072154 is about 594.4602633135.

The spelling of 210072154 in words is "two hundred ten million, seventy-two thousand, one hundred fifty-four".