146688999997 has 2 divisors, whose sum is σ = 146688999998. Its totient is φ = 146688999996.

The previous prime is 146688999973. The next prime is 146689000027. The reversal of 146688999997 is 799999886641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130126854361 + 16562145636 = 360731^2 + 128694^2 .

It is a cyclic number.

It is not a de Polignac number, because 146688999997 - 2³¹ = 144541516349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146688990997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73344499998 + 73344499999.

It is an arithmetic number, because the mean of its divisors is an integer number (73344499999).

Almost surely, 2^146688999997 is an apocalyptic number.

It is an amenable number.

146688999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

146688999997 is an equidigital number, since it uses as much as digits as its factorization.

146688999997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3809369088, while the sum is 85.

The spelling of 146688999997 in words is "one hundred forty-six billion, six hundred eighty-eight million, nine hundred ninety-nine thousand, nine hundred ninety-seven".