151440101 has 4 divisors (see below), whose sum is σ = 155133804. Its totient is φ = 147746400.

The previous prime is 151440071. The next prime is 151440137. The reversal of 151440101 is 101044151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24900100 + 126540001 = 4990^2 + 11249^2 .

It is a cyclic number.

It is not a de Polignac number, because 151440101 - 2¹⁴ = 151423717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 151440101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151440151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846790 + ... + 1846871.

It is an arithmetic number, because the mean of its divisors is an integer number (38783451).

Almost surely, 2^151440101 is an apocalyptic number.

It is an amenable number.

151440101 is a deficient number, since it is larger than the sum of its proper divisors (3693703).

151440101 is an equidigital number, since it uses as much as digits as its factorization.

151440101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693702.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 151440101 is about 12306.1001539887. The cubic root of 151440101 is about 533.0242448201.

Adding to 151440101 its reverse (101044151), we get a palindrome (252484252).

The spelling of 151440101 in words is "one hundred fifty-one million, four hundred forty thousand, one hundred one".