151120645 has 16 divisors (see below), whose sum is σ = 196464240. Its totient is φ = 111588672.

The previous prime is 151120639. The next prime is 151120657. The reversal of 151120645 is 546021151.

151120645 = 493² + 494² + ... + 830².

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 143185156 + 7935489 = 11966^2 + 2817^2 .

It is not a de Polignac number, because 151120645 - 2¹⁵ = 151087877 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 4107 + ... + 17863.

It is an arithmetic number, because the mean of its divisors is an integer number (12279015).

Almost surely, 2^151120645 is an apocalyptic number.

It is an amenable number.

151120645 is a deficient number, since it is larger than the sum of its proper divisors (45343595).

151120645 is an equidigital number, since it uses as much as digits as its factorization.

151120645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13801 (or 13775 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 151120645 is about 12293.1137227311. The cubic root of 151120645 is about 532.6491841776.

Adding to 151120645 its reverse (546021151), we get a palindrome (697141796).

The spelling of 151120645 in words is "one hundred fifty-one million, one hundred twenty thousand, six hundred forty-five".