151918537 has 2 divisors, whose sum is σ = 151918538. Its totient is φ = 151918536.

The previous prime is 151918457. The next prime is 151918541. The reversal of 151918537 is 735819151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 51998521 = 9996^2 + 7211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151918537 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151918537.

It is not a weakly prime, because it can be changed into another prime (151918567) 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, 75959268 + 75959269.

It is an arithmetic number, because the mean of its divisors is an integer number (75959269).

Almost surely, 2^151918537 is an apocalyptic number.

It is an amenable number.

151918537 is a deficient number, since it is larger than the sum of its proper divisors (1).

151918537 is an equidigital number, since it uses as much as digits as its factorization.

151918537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 40.

The square root of 151918537 is about 12325.5238022568. The cubic root of 151918537 is about 533.5849723546.

The spelling of 151918537 in words is "one hundred fifty-one million, nine hundred eighteen thousand, five hundred thirty-seven".