135899998051 has 2 divisors, whose sum is σ = 135899998052. Its totient is φ = 135899998050.

The previous prime is 135899998007. The next prime is 135899998109. The reversal of 135899998051 is 150899998531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135899998051 - 2¹⁹ = 135899473763 is a prime.

It is not a weakly prime, because it can be changed into another prime (135899998001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67949999025 + 67949999026.

It is an arithmetic number, because the mean of its divisors is an integer number (67949999026).

Almost surely, 2^135899998051 is an apocalyptic number.

135899998051 is a deficient number, since it is larger than the sum of its proper divisors (1).

135899998051 is an equidigital number, since it uses as much as digits as its factorization.

135899998051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31492800, while the sum is 67.

The spelling of 135899998051 in words is "one hundred thirty-five billion, eight hundred ninety-nine million, nine hundred ninety-eight thousand, fifty-one".