136861742 has 8 divisors (see below), whose sum is σ = 210841176. Its totient is φ = 66581352.

The previous prime is 136861729. The next prime is 136861783. The reversal of 136861742 is 247168631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×136861742² = 37462272846549128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136861696 and 136861705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924668 + ... + 924815.

It is an arithmetic number, because the mean of its divisors is an integer number (26355147).

Almost surely, 2^136861742 is an apocalyptic number.

136861742 is a deficient number, since it is larger than the sum of its proper divisors (73979434).

136861742 is a wasteful number, since it uses less digits than its factorization.

136861742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849522.

The product of its digits is 48384, while the sum is 38.

The square root of 136861742 is about 11698.7923308348. The cubic root of 136861742 is about 515.3401993893.

The spelling of 136861742 in words is "one hundred thirty-six million, eight hundred sixty-one thousand, seven hundred forty-two".