135437854 has 4 divisors (see below), whose sum is σ = 203156784. Its totient is φ = 67718926.

The previous prime is 135437821. The next prime is 135437867. The reversal of 135437854 is 458734531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 458734531 = 773 ⋅593447.

It is a super-2 number, since 2×135437854² = 36686824592250632, 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 as a sum of consecutive naturals, namely, 33859462 + ... + 33859465.

It is an arithmetic number, because the mean of its divisors is an integer number (50789196).

Almost surely, 2^135437854 is an apocalyptic number.

135437854 is a deficient number, since it is larger than the sum of its proper divisors (67718930).

135437854 is an equidigital number, since it uses as much as digits as its factorization.

135437854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67718929.

The product of its digits is 201600, while the sum is 40.

The square root of 135437854 is about 11637.7770214075. Note that the first 3 decimals coincide. The cubic root of 135437854 is about 513.5467927488.

The spelling of 135437854 in words is "one hundred thirty-five million, four hundred thirty-seven thousand, eight hundred fifty-four".