155650149 has 12 divisors (see below), whose sum is σ = 227537856. Its totient is φ = 102516072.

The previous prime is 155650141. The next prime is 155650169. The reversal of 155650149 is 941056551.

155650149 = T₁₈₉₅ + T₁₈₉₆ + ... + T₁₉₇₇.

It is not a de Polignac number, because 155650149 - 2³ = 155650141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155650141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103437 + ... + 104930.

It is an arithmetic number, because the mean of its divisors is an integer number (18961488).

Almost surely, 2^155650149 is an apocalyptic number.

It is an amenable number.

155650149 is a deficient number, since it is larger than the sum of its proper divisors (71887707).

155650149 is a wasteful number, since it uses less digits than its factorization.

155650149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208456 (or 208453 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 155650149 is about 12475.9828871316. The cubic root of 155650149 is about 537.9185407087.

The spelling of 155650149 in words is "one hundred fifty-five million, six hundred fifty thousand, one hundred forty-nine".