151601515 has 16 divisors (see below), whose sum is σ = 196308000. Its totient is φ = 111727872.

The previous prime is 151601497. The next prime is 151601519. The reversal of 151601515 is 515106151.

It is a cyclic number.

It is not a de Polignac number, because 151601515 - 2⁹ = 151601003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151601515.

It is not an unprimeable number, because it can be changed into a prime (151601519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34936 + ... + 39034.

It is an arithmetic number, because the mean of its divisors is an integer number (12269250).

Almost surely, 2^151601515 is an apocalyptic number.

151601515 is a deficient number, since it is larger than the sum of its proper divisors (44706485).

151601515 is a wasteful number, since it uses less digits than its factorization.

151601515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686.

The product of its (nonzero) digits is 750, while the sum is 25.

The square root of 151601515 is about 12312.6566995105. The cubic root of 151601515 is about 533.2135540474.

Adding to 151601515 its reverse (515106151), we get a palindrome (666707666).

The spelling of 151601515 in words is "one hundred fifty-one million, six hundred one thousand, five hundred fifteen".