150040621 has 2 divisors, whose sum is σ = 150040622. Its totient is φ = 150040620.

The previous prime is 150040613. The next prime is 150040673. The reversal of 150040621 is 126040051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133148521 + 16892100 = 11539^2 + 4110^2 .

It is a cyclic number.

It is not a de Polignac number, because 150040621 - 2³ = 150040613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150040021) 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 as a sum of consecutive naturals, namely, 75020310 + 75020311.

It is an arithmetic number, because the mean of its divisors is an integer number (75020311).

Almost surely, 2^150040621 is an apocalyptic number.

It is an amenable number.

150040621 is a deficient number, since it is larger than the sum of its proper divisors (1).

150040621 is an equidigital number, since it uses as much as digits as its factorization.

150040621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 150040621 is about 12249.1069470390. The cubic root of 150040621 is about 531.3772427666.

Adding to 150040621 its reverse (126040051), we get a palindrome (276080672).

The spelling of 150040621 in words is "one hundred fifty million, forty thousand, six hundred twenty-one".