151513216 has 16 divisors (see below), whose sum is σ = 301842990. Its totient is φ = 75756544.

The previous prime is 151513207. The next prime is 151513223. The reversal of 151513216 is 612315151.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 97930816 + 53582400 = 9896^2 + 7320^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 591721 + ... + 591976.

Almost surely, 2^151513216 is an apocalyptic number.

151513216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

151513216 is a deficient number, since it is larger than the sum of its proper divisors (150329774).

151513216 is an equidigital number, since it uses as much as digits as its factorization.

151513216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183711 (or 1183699 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 151513216 is about 12309.0704766851. The cubic root of 151513216 is about 533.1100120579.

Adding to 151513216 its reverse (612315151), we get a palindrome (763828367).

The spelling of 151513216 in words is "one hundred fifty-one million, five hundred thirteen thousand, two hundred sixteen".