136949619 has 8 divisors (see below), whose sum is σ = 182710672. Its totient is φ = 91244160.

The previous prime is 136949573. The next prime is 136949633. The reversal of 136949619 is 916949631.

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

It is not a de Polignac number, because 136949619 - 2¹¹ = 136947571 is a prime.

It is a super-2 number, since 2×136949619² = 37510396288490322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136949639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7762 + ... + 18279.

It is an arithmetic number, because the mean of its divisors is an integer number (22838834).

Almost surely, 2^136949619 is an apocalyptic number.

136949619 is a deficient number, since it is larger than the sum of its proper divisors (45761053).

136949619 is a wasteful number, since it uses less digits than its factorization.

136949619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27797.

The product of its digits is 314928, while the sum is 48.

The square root of 136949619 is about 11702.5475431634. The cubic root of 136949619 is about 515.4504733560.

The spelling of 136949619 in words is "one hundred thirty-six million, nine hundred forty-nine thousand, six hundred nineteen".