151022216 has 8 divisors (see below), whose sum is σ = 283166670. Its totient is φ = 75511104.

The previous prime is 151022191. The next prime is 151022219. The reversal of 151022216 is 612220151.

It can be written as a sum of positive squares in only one way, i.e., 147525316 + 3496900 = 12146^2 + 1870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×151022216³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (151022219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9438881 + ... + 9438896.

Almost surely, 2^151022216 is an apocalyptic number.

It is an amenable number.

151022216 is a deficient number, since it is larger than the sum of its proper divisors (132144454).

151022216 is a wasteful number, since it uses less digits than its factorization.

151022216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18877783 (or 18877779 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 151022216 is about 12289.1096504181. The cubic root of 151022216 is about 532.5335160783.

Adding to 151022216 its reverse (612220151), we get a palindrome (763242367).

The spelling of 151022216 in words is "one hundred fifty-one million, twenty-two thousand, two hundred sixteen".