151420441 has 4 divisors (see below), whose sum is σ = 151489332. Its totient is φ = 151351552.

The previous prime is 151420433. The next prime is 151420447. The reversal of 151420441 is 144024151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144024151 = 131 ⋅1099421.

It can be written as a sum of positive squares in 2 ways, for example, as 51840000 + 99580441 = 7200^2 + 9979^2 .

It is a cyclic number.

It is not a de Polignac number, because 151420441 - 2³ = 151420433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151420447) 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, 31036 + ... + 35581.

It is an arithmetic number, because the mean of its divisors is an integer number (37872333).

Almost surely, 2^151420441 is an apocalyptic number.

It is an amenable number.

151420441 is a deficient number, since it is larger than the sum of its proper divisors (68891).

151420441 is an equidigital number, since it uses as much as digits as its factorization.

151420441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68890.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 151420441 is about 12305.3013372286. The cubic root of 151420441 is about 533.0011780320.

Adding to 151420441 its reverse (144024151), we get a palindrome (295444592).

The spelling of 151420441 in words is "one hundred fifty-one million, four hundred twenty thousand, four hundred forty-one".