149658553 has 16 divisors (see below), whose sum is σ = 165400704. Its totient is φ = 134287360.

The previous prime is 149658517. The next prime is 149658581. The reversal of 149658553 is 355856941.

It is a cyclic number.

It is not a de Polignac number, because 149658553 - 2¹⁷ = 149527481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149658253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471951 + ... + 472267.

It is an arithmetic number, because the mean of its divisors is an integer number (10337544).

Almost surely, 2^149658553 is an apocalyptic number.

It is an amenable number.

149658553 is a deficient number, since it is larger than the sum of its proper divisors (15742151).

149658553 is a wasteful number, since it uses less digits than its factorization.

149658553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752.

The product of its digits is 648000, while the sum is 46.

The square root of 149658553 is about 12233.5012567948. The cubic root of 149658553 is about 530.9258209881.

The spelling of 149658553 in words is "one hundred forty-nine million, six hundred fifty-eight thousand, five hundred fifty-three".