150994993 has 2 divisors, whose sum is σ = 150994994. Its totient is φ = 150994992.

The previous prime is 150994981. The next prime is 150995027. The reversal of 150994993 is 399499051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150994944 + 49 = 12288^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 150994993 - 2²¹ = 148897841 is a prime.

It is a super-2 number, since 2×150994993² = 45598975822140098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150992993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75497496 + 75497497.

It is an arithmetic number, because the mean of its divisors is an integer number (75497497).

Almost surely, 2^150994993 is an apocalyptic number.

It is an amenable number.

150994993 is a deficient number, since it is larger than the sum of its proper divisors (1).

150994993 is an equidigital number, since it uses as much as digits as its factorization.

150994993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 150994993 is about 12288.0019938149. The cubic root of 150994993 is about 532.5015163027.

Subtracting from 150994993 its sum of digits (49), we obtain a square (150994944 = 12288²).

The spelling of 150994993 in words is "one hundred fifty million, nine hundred ninety-four thousand, nine hundred ninety-three".