155738049 has 8 divisors (see below), whose sum is σ = 212715552. Its totient is φ = 101292960.

The previous prime is 155738039. The next prime is 155738081. The reversal of 155738049 is 940837551.

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

It is not a de Polignac number, because 155738049 - 2¹¹ = 155736001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155738049.

It is not an unprimeable number, because it can be changed into a prime (155738029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632959 + ... + 633204.

It is an arithmetic number, because the mean of its divisors is an integer number (26589444).

Almost surely, 2^155738049 is an apocalyptic number.

It is an amenable number.

155738049 is a deficient number, since it is larger than the sum of its proper divisors (56977503).

155738049 is a wasteful number, since it uses less digits than its factorization.

155738049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266207.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 155738049 is about 12479.5051584588. The cubic root of 155738049 is about 538.0197808770.

The spelling of 155738049 in words is "one hundred fifty-five million, seven hundred thirty-eight thousand, forty-nine".