153927961 has 16 divisors (see below), whose sum is σ = 172585728. Its totient is φ = 136086400.

The previous prime is 153927941. The next prime is 153927967. The reversal of 153927961 is 169729351.

It is a 3-Lehmer number, since φ(153927961) divides (153927961-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 153927961 - 2⁷ = 153927833 is a prime.

It is a deceptive number, since it divides R_153927960.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153927967) 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 15 ways as a sum of consecutive naturals, for example, 88581 + ... + 90301.

It is an arithmetic number, because the mean of its divisors is an integer number (10786608).

It is a Poulet number, since it divides 2^153927960-1.

Almost surely, 2^153927961 is an apocalyptic number.

153927961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

153927961 is a deficient number, since it is larger than the sum of its proper divisors (18657767).

153927961 is a wasteful number, since it uses less digits than its factorization.

153927961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952.

The product of its digits is 102060, while the sum is 43.

The square root of 153927961 is about 12406.7707724452. The cubic root of 153927961 is about 535.9272486560.

The spelling of 153927961 in words is "one hundred fifty-three million, nine hundred twenty-seven thousand, nine hundred sixty-one".