135498461999 has 12 divisors (see below), whose sum is σ = 140950193400. Its totient is φ = 130247355600.

The previous prime is 135498461993. The next prime is 135498462013. The reversal of 135498461999 is 999164894531.

It is not a de Polignac number, because 135498461999 - 2¹⁶ = 135498396463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135498461993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329957 + ... + 616334.

It is an arithmetic number, because the mean of its divisors is an integer number (11745849450).

Almost surely, 2^135498461999 is an apocalyptic number.

135498461999 is a deficient number, since it is larger than the sum of its proper divisors (5451731401).

135498461999 is an equidigital number, since it uses as much as digits as its factorization.

135498461999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946502 (or 946471 counting only the distinct ones).

The product of its digits is 75582720, while the sum is 68.

The spelling of 135498461999 in words is "one hundred thirty-five billion, four hundred ninety-eight million, four hundred sixty-one thousand, nine hundred ninety-nine".