134587998 has 12 divisors (see below), whose sum is σ = 291607368. Its totient is φ = 44862660.

The previous prime is 134587987. The next prime is 134588009. The reversal of 134587998 is 899785431.

It is an interprime number because it is at equal distance from previous prime (134587987) and next prime (134588009).

It is a super-2 number, since 2×134587998² = 36227858411296008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3738538 + ... + 3738573.

It is an arithmetic number, because the mean of its divisors is an integer number (24300614).

Almost surely, 2^134587998 is an apocalyptic number.

134587998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

134587998 is an abundant number, since it is smaller than the sum of its proper divisors (157019370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134587998 is a wasteful number, since it uses less digits than its factorization.

134587998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7477119 (or 7477116 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 134587998 is about 11601.2067475759. The cubic root of 134587998 is about 512.4703903576.

The spelling of 134587998 in words is "one hundred thirty-four million, five hundred eighty-seven thousand, nine hundred ninety-eight".