151001665 has 8 divisors (see below), whose sum is σ = 181453608. Its totient is φ = 120633600.

The previous prime is 151001663. The next prime is 151001671. The reversal of 151001665 is 566100151.

It can be written as a sum of positive squares in 4 ways, for example, as 82955664 + 68046001 = 9108^2 + 8249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151001665 - 2¹ = 151001663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151001663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16936 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (22681701).

Almost surely, 2^151001665 is an apocalyptic number.

It is an amenable number.

151001665 is a deficient number, since it is larger than the sum of its proper divisors (30451943).

151001665 is an equidigital number, since it uses as much as digits as its factorization.

151001665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41939.

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

The square root of 151001665 is about 12288.2734751469. The cubic root of 151001665 is about 532.5093593835.

The spelling of 151001665 in words is "one hundred fifty-one million, one thousand, six hundred sixty-five".