978514051 has 2 divisors, whose sum is σ = 978514052. Its totient is φ = 978514050.

The previous prime is 978514049. The next prime is 978514057. The reversal of 978514051 is 150415879.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 978514051 - 2¹ = 978514049 is a prime.

Together with 978514049, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 978513995 and 978514013.

It is not a weakly prime, because it can be changed into another prime (978514057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489257025 + 489257026.

It is an arithmetic number, because the mean of its divisors is an integer number (489257026).

Almost surely, 2^978514051 is an apocalyptic number.

978514051 is a deficient number, since it is larger than the sum of its proper divisors (1).

978514051 is an equidigital number, since it uses as much as digits as its factorization.

978514051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 978514051 is about 31281.2092317417. The cubic root of 978514051 is about 992.7861018108.

The spelling of 978514051 in words is "nine hundred seventy-eight million, five hundred fourteen thousand, fifty-one".