151878497 has 2 divisors, whose sum is σ = 151878498. Its totient is φ = 151878496.

The previous prime is 151878491. The next prime is 151878509. The reversal of 151878497 is 794878151.

151878497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123565456 + 28313041 = 11116^2 + 5321^2 .

It is a cyclic number.

It is not a de Polignac number, because 151878497 - 2⁸ = 151878241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (151878491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75939248 + 75939249.

It is an arithmetic number, because the mean of its divisors is an integer number (75939249).

Almost surely, 2^151878497 is an apocalyptic number.

It is an amenable number.

151878497 is a deficient number, since it is larger than the sum of its proper divisors (1).

151878497 is an equidigital number, since it uses as much as digits as its factorization.

151878497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 50.

The square root of 151878497 is about 12323.8994234779. The cubic root of 151878497 is about 533.5380906070.

The spelling of 151878497 in words is "one hundred fifty-one million, eight hundred seventy-eight thousand, four hundred ninety-seven".