151440212 has 36 divisors (see below), whose sum is σ = 332925600. Its totient is φ = 59001360.

The previous prime is 151440187. The next prime is 151440217. The reversal of 151440212 is 212044151.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151440217) 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, 18962 + ... + 25737.

Almost surely, 2^151440212 is an apocalyptic number.

It is an amenable number.

151440212 is an abundant number, since it is smaller than the sum of its proper divisors (181485388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151440212 is a wasteful number, since it uses less digits than its factorization.

151440212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44732 (or 44719 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 151440212 is about 12306.1046639463. The cubic root of 151440212 is about 533.0243750491.

Adding to 151440212 its reverse (212044151), we get a palindrome (363484363).

The spelling of 151440212 in words is "one hundred fifty-one million, four hundred forty thousand, two hundred twelve".