136942534 has 4 divisors (see below), whose sum is σ = 205413804. Its totient is φ = 68471266.

The previous prime is 136942523. The next prime is 136942543. The reversal of 136942534 is 435249631.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 136942493 and 136942502.

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, 34235632 + ... + 34235635.

It is an arithmetic number, because the mean of its divisors is an integer number (51353451).

Almost surely, 2^136942534 is an apocalyptic number.

136942534 is a deficient number, since it is larger than the sum of its proper divisors (68471270).

136942534 is an equidigital number, since it uses as much as digits as its factorization.

136942534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68471269.

The product of its digits is 77760, while the sum is 37.

The square root of 136942534 is about 11702.2448273825. The cubic root of 136942534 is about 515.4415843704.

The spelling of 136942534 in words is "one hundred thirty-six million, nine hundred forty-two thousand, five hundred thirty-four".