211152542 has 16 divisors (see below), whose sum is σ = 325155600. Its totient is φ = 102778560.

The previous prime is 211152541. The next prime is 211152551. The reversal of 211152542 is 245251112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211152541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39209 + ... + 44267.

It is an arithmetic number, because the mean of its divisors is an integer number (20322225).

Almost surely, 2^211152542 is an apocalyptic number.

211152542 is a deficient number, since it is larger than the sum of its proper divisors (114003058).

211152542 is a wasteful number, since it uses less digits than its factorization.

211152542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611.

The product of its digits is 800, while the sum is 23.

The square root of 211152542 is about 14531.0888098587. The cubic root of 211152542 is about 595.4776119474.

The spelling of 211152542 in words is "two hundred eleven million, one hundred fifty-two thousand, five hundred forty-two".