143400212 has 6 divisors (see below), whose sum is σ = 250950378. Its totient is φ = 71700104.

The previous prime is 143400199. The next prime is 143400217. The reversal of 143400212 is 212004341.

It can be written as a sum of positive squares in only one way, i.e., 142945936 + 454276 = 11956^2 + 674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143400217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17925023 + ... + 17925030.

It is an arithmetic number, because the mean of its divisors is an integer number (41825063).

Almost surely, 2^143400212 is an apocalyptic number.

It is an amenable number.

143400212 is a deficient number, since it is larger than the sum of its proper divisors (107550166).

143400212 is a wasteful number, since it uses less digits than its factorization.

143400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35850057 (or 35850055 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 143400212 is about 11974.9827557287. The cubic root of 143400212 is about 523.4195396234.

Adding to 143400212 its reverse (212004341), we get a palindrome (355404553).

The spelling of 143400212 in words is "one hundred forty-three million, four hundred thousand, two hundred twelve".