150251993 has 2 divisors, whose sum is σ = 150251994. Its totient is φ = 150251992.

The previous prime is 150251963. The next prime is 150252007. The reversal of 150251993 is 399152051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128981449 + 21270544 = 11357^2 + 4612^2 .

It is a cyclic number.

It is not a de Polignac number, because 150251993 - 2¹² = 150247897 is a prime.

It is a super-2 number, since 2×150251993² = 45151322800944098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150251963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75125996 + 75125997.

It is an arithmetic number, because the mean of its divisors is an integer number (75125997).

Almost surely, 2^150251993 is an apocalyptic number.

It is an amenable number.

150251993 is a deficient number, since it is larger than the sum of its proper divisors (1).

150251993 is an equidigital number, since it uses as much as digits as its factorization.

150251993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 150251993 is about 12257.7319680274. The cubic root of 150251993 is about 531.6266542653.

The spelling of 150251993 in words is "one hundred fifty million, two hundred fifty-one thousand, nine hundred ninety-three".