151024981 has 2 divisors, whose sum is σ = 151024982. Its totient is φ = 151024980.

The previous prime is 151024961. The next prime is 151024999. The reversal of 151024981 is 189420151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115132900 + 35892081 = 10730^2 + 5991^2 .

It is an emirp because it is prime and its reverse (189420151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151024981 - 2⁵ = 151024949 is a prime.

It is a super-3 number, since 3×151024981³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151024961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75512490 + 75512491.

It is an arithmetic number, because the mean of its divisors is an integer number (75512491).

Almost surely, 2^151024981 is an apocalyptic number.

It is an amenable number.

151024981 is a deficient number, since it is larger than the sum of its proper divisors (1).

151024981 is an equidigital number, since it uses as much as digits as its factorization.

151024981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 151024981 is about 12289.2221478823. Note that the first 3 decimals coincide. The cubic root of 151024981 is about 532.5367660332.

The spelling of 151024981 in words is "one hundred fifty-one million, twenty-four thousand, nine hundred eighty-one".